19353968

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:393

約数の個数: 40

約数和(自身を含む): 38862096

約数和(自身を除く): 19508128

約数列:

[1, 2, 4, 8, 16, 41, 82, 163, 164, 181, 326, 328, 362, 652, 656, 724, 1304, 1448, 2608, 2896, 6683, 7421, 13366, 14842, 26732, 29503, 29684, 53464, 59006, 59368, 106928, 118012, 118736, 236024, 472048, 1209623, 2419246, 4838492, 9676984, 19353968]

約数ペア:

[(1, 19353968), (2, 9676984), (4, 4838492), (8, 2419246), (16, 1209623), (41, 472048), (82, 236024), (163, 118736), (164, 118012), (181, 106928), (326, 59368), (328, 59006), (362, 53464), (652, 29684), (656, 29503), (724, 26732), (1304, 14842), (1448, 13366), (2608, 7421), (2896, 6683)]