19914008

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{701}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 38666160

約数和(自身を除く): 18752152

約数列:

[1, 2, 4, 8, 53, 67, 106, 134, 212, 268, 424, 536, 701, 1402, 2804, 3551, 5608, 7102, 14204, 28408, 37153, 46967, 74306, 93934, 148612, 187868, 297224, 375736, 2489251, 4978502, 9957004, 19914008]

約数ペア:

[(1, 19914008), (2, 9957004), (4, 4978502), (8, 2489251), (53, 375736), (67, 297224), (106, 187868), (134, 148612), (212, 93934), (268, 74306), (424, 46967), (536, 37153), (701, 28408), (1402, 14204), (2804, 7102), (3551, 5608)]