20474536

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1123}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 40059360

約数和(自身を除く): 19584824

約数列:

[1, 2, 4, 8, 43, 53, 86, 106, 172, 212, 344, 424, 1123, 2246, 2279, 4492, 4558, 8984, 9116, 18232, 48289, 59519, 96578, 119038, 193156, 238076, 386312, 476152, 2559317, 5118634, 10237268, 20474536]

約数ペア:

[(1, 20474536), (2, 10237268), (4, 5118634), (8, 2559317), (43, 476152), (53, 386312), (86, 238076), (106, 193156), (172, 119038), (212, 96578), (344, 59519), (424, 48289), (1123, 18232), (2246, 9116), (2279, 8984), (4492, 4558)]