21907296

素因数分解:

$2^5\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:149

約数の個数: 144

約数和(自身を含む): 67026960

約数和(自身を除く): 45119664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 32, 36, 43, 48, 58, 61, 72, 86, 87, 96, 116, 122, 129, 144, 172, 174, 183, 232, 244, 258, 261, 288, 344, 348, 366, 387, 464, 488, 516, 522, 549, 688, 696, 732, 774, 928, 976, 1032, 1044, 1098, 1247, 1376, 1392, 1464, 1548, 1769, 1952, 2064, 2088, 2196, 2494, 2623, 2784, 2928, 3096, 3538, 3741, 4128, 4176, 4392, 4988, 5246, 5307, 5856, 6192, 7076, 7482, 7869, 8352, 8784, 9976, 10492, 10614, 11223, 12384, 14152, 14964, 15738, 15921, 17568, 19952, 20984, 21228, 22446, 23607, 28304, 29928, 31476, 31842, 39904, 41968, 42456, 44892, 47214, 56608, 59856, 62952, 63684, 76067, 83936, 84912, 89784, 94428, 119712, 125904, 127368, 152134, 169824, 179568, 188856, 228201, 251808, 254736, 304268, 359136, 377712, 456402, 509472, 608536, 684603, 755424, 912804, 1217072, 1369206, 1825608, 2434144, 2738412, 3651216, 5476824, 7302432, 10953648, 21907296]

約数ペア:

[(1, 21907296), (2, 10953648), (3, 7302432), (4, 5476824), (6, 3651216), (8, 2738412), (9, 2434144), (12, 1825608), (16, 1369206), (18, 1217072), (24, 912804), (29, 755424), (32, 684603), (36, 608536), (43, 509472), (48, 456402), (58, 377712), (61, 359136), (72, 304268), (86, 254736), (87, 251808), (96, 228201), (116, 188856), (122, 179568), (129, 169824), (144, 152134), (172, 127368), (174, 125904), (183, 119712), (232, 94428), (244, 89784), (258, 84912), (261, 83936), (288, 76067), (344, 63684), (348, 62952), (366, 59856), (387, 56608), (464, 47214), (488, 44892), (516, 42456), (522, 41968), (549, 39904), (688, 31842), (696, 31476), (732, 29928), (774, 28304), (928, 23607), (976, 22446), (1032, 21228), (1044, 20984), (1098, 19952), (1247, 17568), (1376, 15921), (1392, 15738), (1464, 14964), (1548, 14152), (1769, 12384), (1952, 11223), (2064, 10614), (2088, 10492), (2196, 9976), (2494, 8784), (2623, 8352), (2784, 7869), (2928, 7482), (3096, 7076), (3538, 6192), (3741, 5856), (4128, 5307), (4176, 5246), (4392, 4988)]