21145488

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 160

約数和(自身を含む): 69328896

約数和(自身を除く): 48183408

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 47, 48, 52, 56, 78, 84, 91, 94, 103, 104, 112, 141, 156, 168, 182, 188, 206, 208, 273, 282, 309, 312, 329, 336, 364, 376, 412, 546, 564, 611, 618, 624, 658, 721, 728, 752, 824, 987, 1092, 1128, 1222, 1236, 1316, 1339, 1442, 1456, 1648, 1833, 1974, 2163, 2184, 2256, 2444, 2472, 2632, 2678, 2884, 3666, 3948, 4017, 4277, 4326, 4368, 4841, 4888, 4944, 5264, 5356, 5768, 7332, 7896, 8034, 8554, 8652, 9373, 9682, 9776, 10712, 11536, 12831, 14523, 14664, 15792, 16068, 17108, 17304, 18746, 19364, 21424, 25662, 28119, 29046, 29328, 32136, 33887, 34216, 34608, 37492, 38728, 51324, 56238, 58092, 62933, 64272, 67774, 68432, 74984, 77456, 101661, 102648, 112476, 116184, 125866, 135548, 149968, 188799, 203322, 205296, 224952, 232368, 251732, 271096, 377598, 406644, 440531, 449904, 503464, 542192, 755196, 813288, 881062, 1006928, 1321593, 1510392, 1626576, 1762124, 2643186, 3020784, 3524248, 5286372, 7048496, 10572744, 21145488]

約数ペア:

[(1, 21145488), (2, 10572744), (3, 7048496), (4, 5286372), (6, 3524248), (7, 3020784), (8, 2643186), (12, 1762124), (13, 1626576), (14, 1510392), (16, 1321593), (21, 1006928), (24, 881062), (26, 813288), (28, 755196), (39, 542192), (42, 503464), (47, 449904), (48, 440531), (52, 406644), (56, 377598), (78, 271096), (84, 251732), (91, 232368), (94, 224952), (103, 205296), (104, 203322), (112, 188799), (141, 149968), (156, 135548), (168, 125866), (182, 116184), (188, 112476), (206, 102648), (208, 101661), (273, 77456), (282, 74984), (309, 68432), (312, 67774), (329, 64272), (336, 62933), (364, 58092), (376, 56238), (412, 51324), (546, 38728), (564, 37492), (611, 34608), (618, 34216), (624, 33887), (658, 32136), (721, 29328), (728, 29046), (752, 28119), (824, 25662), (987, 21424), (1092, 19364), (1128, 18746), (1222, 17304), (1236, 17108), (1316, 16068), (1339, 15792), (1442, 14664), (1456, 14523), (1648, 12831), (1833, 11536), (1974, 10712), (2163, 9776), (2184, 9682), (2256, 9373), (2444, 8652), (2472, 8554), (2632, 8034), (2678, 7896), (2884, 7332), (3666, 5768), (3948, 5356), (4017, 5264), (4277, 4944), (4326, 4888), (4368, 4841)]