20101222

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:815

約数の個数: 16

約数和(自身を含む): 30668544

約数和(自身を除く): 10567322

約数列:

[1, 2, 101, 191, 202, 382, 521, 1042, 19291, 38582, 52621, 99511, 105242, 199022, 10050611, 20101222]

約数ペア:

[(1, 20101222), (2, 10050611), (101, 199022), (191, 105242), (202, 99511), (382, 52621), (521, 38582), (1042, 19291)]