19997176

素因数分解:

$2^3\times {\mathrm{41}}^2\times {\mathrm{1487}}^1$

素因数の和:1575

約数の個数: 24

約数和(自身を含む): 38457360

約数和(自身を除く): 18460184

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 1487, 1681, 2974, 3362, 5948, 6724, 11896, 13448, 60967, 121934, 243868, 487736, 2499647, 4999294, 9998588, 19997176]

約数ペア:

[(1, 19997176), (2, 9998588), (4, 4999294), (8, 2499647), (41, 487736), (82, 243868), (164, 121934), (328, 60967), (1487, 13448), (1681, 11896), (2974, 6724), (3362, 5948)]