20645254

素因数分解:

$2^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 36368640

約数和(自身を除く): 15723386

約数列:

[1, 2, 7, 14, 83, 109, 163, 166, 218, 326, 581, 763, 1141, 1162, 1526, 2282, 9047, 13529, 17767, 18094, 27058, 35534, 63329, 94703, 124369, 126658, 189406, 248738, 1474661, 2949322, 10322627, 20645254]

約数ペア:

[(1, 20645254), (2, 10322627), (7, 2949322), (14, 1474661), (83, 248738), (109, 189406), (163, 126658), (166, 124369), (218, 94703), (326, 63329), (581, 35534), (763, 27058), (1141, 18094), (1162, 17767), (1526, 13529), (2282, 9047)]