20217318

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:557

約数の個数: 64

約数和(自身を含む): 48066048

約数和(自身を除く): 27848730

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 37, 51, 66, 74, 102, 111, 187, 222, 374, 407, 487, 561, 629, 814, 974, 1122, 1221, 1258, 1461, 1887, 2442, 2922, 3774, 5357, 6919, 8279, 10714, 13838, 16071, 16558, 18019, 20757, 24837, 32142, 36038, 41514, 49674, 54057, 91069, 108114, 182138, 198209, 273207, 306323, 396418, 546414, 594627, 612646, 918969, 1189254, 1837938, 3369553, 6739106, 10108659, 20217318]

約数ペア:

[(1, 20217318), (2, 10108659), (3, 6739106), (6, 3369553), (11, 1837938), (17, 1189254), (22, 918969), (33, 612646), (34, 594627), (37, 546414), (51, 396418), (66, 306323), (74, 273207), (102, 198209), (111, 182138), (187, 108114), (222, 91069), (374, 54057), (407, 49674), (487, 41514), (561, 36038), (629, 32142), (814, 24837), (974, 20757), (1122, 18019), (1221, 16558), (1258, 16071), (1461, 13838), (1887, 10714), (2442, 8279), (2922, 6919), (3774, 5357)]