20648866

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{24179}}^1$

素因数の和:24249

約数の個数: 16

約数和(自身を含む): 35979840

約数和(自身を除く): 15330974

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 24179, 48358, 169253, 338506, 1474919, 2949838, 10324433, 20648866]

約数ペア:

[(1, 20648866), (2, 10324433), (7, 2949838), (14, 1474919), (61, 338506), (122, 169253), (427, 48358), (854, 24179)]