19757804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2351}}^1$

素因数の和:2557

約数の個数: 24

約数和(自身を含む): 37933056

約数和(自身を除く): 18175252

約数列:

[1, 2, 4, 11, 22, 44, 191, 382, 764, 2101, 2351, 4202, 4702, 8404, 9404, 25861, 51722, 103444, 449041, 898082, 1796164, 4939451, 9878902, 19757804]

約数ペア:

[(1, 19757804), (2, 9878902), (4, 4939451), (11, 1796164), (22, 898082), (44, 449041), (191, 103444), (382, 51722), (764, 25861), (2101, 9404), (2351, 8404), (4202, 4702)]