18715964

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{881}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 33784128

約数和(自身を除く): 15068164

約数列:

[1, 2, 4, 47, 94, 113, 188, 226, 452, 881, 1762, 3524, 5311, 10622, 21244, 41407, 82814, 99553, 165628, 199106, 398212, 4678991, 9357982, 18715964]

約数ペア:

[(1, 18715964), (2, 9357982), (4, 4678991), (47, 398212), (94, 199106), (113, 165628), (188, 99553), (226, 82814), (452, 41407), (881, 21244), (1762, 10622), (3524, 5311)]