18659238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 42517440

約数和(自身を除く): 23858202

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 73, 78, 87, 113, 146, 174, 219, 226, 339, 377, 438, 678, 754, 949, 1131, 1469, 1898, 2117, 2262, 2847, 2938, 3277, 4234, 4407, 5694, 6351, 6554, 8249, 8814, 9831, 12702, 16498, 19662, 24747, 27521, 42601, 49494, 55042, 82563, 85202, 107237, 127803, 165126, 214474, 239221, 255606, 321711, 478442, 643422, 717663, 1435326, 3109873, 6219746, 9329619, 18659238]

約数ペア:

[(1, 18659238), (2, 9329619), (3, 6219746), (6, 3109873), (13, 1435326), (26, 717663), (29, 643422), (39, 478442), (58, 321711), (73, 255606), (78, 239221), (87, 214474), (113, 165126), (146, 127803), (174, 107237), (219, 85202), (226, 82563), (339, 55042), (377, 49494), (438, 42601), (678, 27521), (754, 24747), (949, 19662), (1131, 16498), (1469, 12702), (1898, 9831), (2117, 8814), (2262, 8249), (2847, 6554), (2938, 6351), (3277, 5694), (4234, 4407)]