21991264344

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{20399}}^1$

素因数の和:20475

約数の個数: 256

約数和(自身を含む): 75202560000

約数和(自身を除く): 53211295656

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 23, 24, 27, 28, 31, 36, 42, 46, 54, 56, 62, 63, 69, 72, 84, 92, 93, 108, 124, 126, 138, 161, 168, 184, 186, 189, 207, 216, 217, 248, 252, 276, 279, 322, 372, 378, 414, 434, 483, 504, 552, 558, 621, 644, 651, 713, 744, 756, 828, 837, 868, 966, 1116, 1242, 1288, 1302, 1426, 1449, 1512, 1656, 1674, 1736, 1932, 1953, 2139, 2232, 2484, 2604, 2852, 2898, 3348, 3864, 3906, 4278, 4347, 4968, 4991, 5208, 5704, 5796, 5859, 6417, 6696, 7812, 8556, 8694, 9982, 11592, 11718, 12834, 14973, 15624, 17112, 17388, 19251, 19964, 20399, 23436, 25668, 29946, 34776, 38502, 39928, 40798, 44919, 46872, 51336, 59892, 61197, 77004, 81596, 89838, 119784, 122394, 134757, 142793, 154008, 163192, 179676, 183591, 244788, 269514, 285586, 359352, 367182, 428379, 469177, 489576, 539028, 550773, 571172, 632369, 734364, 856758, 938354, 1078056, 1101546, 1142344, 1264738, 1285137, 1407531, 1468728, 1713516, 1876708, 1897107, 2203092, 2529476, 2570274, 2815062, 3284239, 3427032, 3753416, 3794214, 3855411, 4222593, 4406184, 4426583, 5058952, 5140548, 5630124, 5691321, 6568478, 7588428, 7710822, 8445186, 8853166, 9852717, 10281096, 11260248, 11382642, 12667779, 13136956, 13279749, 14544487, 15176856, 15421644, 16890372, 17073963, 17706332, 19705434, 22765284, 25335558, 26273912, 26559498, 29088974, 29558151, 30843288, 33780744, 34147926, 35412664, 39410868, 39839247, 43633461, 45530568, 50671116, 53118996, 58177948, 59116302, 68295852, 78821736, 79678494, 87266922, 88674453, 101342232, 101811409, 106237992, 116355896, 118232604, 119517741, 130900383, 136591704, 159356988, 174533844, 177348906, 203622818, 236465208, 239035482, 261800766, 305434227, 318713976, 349067688, 354697812, 392701149, 407245636, 478070964, 523601532, 610868454, 709395624, 785402298, 814491272, 916302681, 956141928, 1047203064, 1221736908, 1570804596, 1832605362, 2443473816, 2748908043, 3141609192, 3665210724, 5497816086, 7330421448, 10995632172, 21991264344]

約数ペア:

[(1, 21991264344), (2, 10995632172), (3, 7330421448), (4, 5497816086), (6, 3665210724), (7, 3141609192), (8, 2748908043), (9, 2443473816), (12, 1832605362), (14, 1570804596), (18, 1221736908), (21, 1047203064), (23, 956141928), (24, 916302681), (27, 814491272), (28, 785402298), (31, 709395624), (36, 610868454), (42, 523601532), (46, 478070964), (54, 407245636), (56, 392701149), (62, 354697812), (63, 349067688), (69, 318713976), (72, 305434227), (84, 261800766), (92, 239035482), (93, 236465208), (108, 203622818), (124, 177348906), (126, 174533844), (138, 159356988), (161, 136591704), (168, 130900383), (184, 119517741), (186, 118232604), (189, 116355896), (207, 106237992), (216, 101811409), (217, 101342232), (248, 88674453), (252, 87266922), (276, 79678494), (279, 78821736), (322, 68295852), (372, 59116302), (378, 58177948), (414, 53118996), (434, 50671116), (483, 45530568), (504, 43633461), (552, 39839247), (558, 39410868), (621, 35412664), (644, 34147926), (651, 33780744), (713, 30843288), (744, 29558151), (756, 29088974), (828, 26559498), (837, 26273912), (868, 25335558), (966, 22765284), (1116, 19705434), (1242, 17706332), (1288, 17073963), (1302, 16890372), (1426, 15421644), (1449, 15176856), (1512, 14544487), (1656, 13279749), (1674, 13136956), (1736, 12667779), (1932, 11382642), (1953, 11260248), (2139, 10281096), (2232, 9852717), (2484, 8853166), (2604, 8445186), (2852, 7710822), (2898, 7588428), (3348, 6568478), (3864, 5691321), (3906, 5630124), (4278, 5140548), (4347, 5058952), (4968, 4426583), (4991, 4406184), (5208, 4222593), (5704, 3855411), (5796, 3794214), (5859, 3753416), (6417, 3427032), (6696, 3284239), (7812, 2815062), (8556, 2570274), (8694, 2529476), (9982, 2203092), (11592, 1897107), (11718, 1876708), (12834, 1713516), (14973, 1468728), (15624, 1407531), (17112, 1285137), (17388, 1264738), (19251, 1142344), (19964, 1101546), (20399, 1078056), (23436, 938354), (25668, 856758), (29946, 734364), (34776, 632369), (38502, 571172), (39928, 550773), (40798, 539028), (44919, 489576), (46872, 469177), (51336, 428379), (59892, 367182), (61197, 359352), (77004, 285586), (81596, 269514), (89838, 244788), (119784, 183591), (122394, 179676), (134757, 163192), (142793, 154008)]