87377774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{20161}}^1$

素因数の和:20371

約数の個数: 16

約数和(自身を含む): 143714736

約数和(自身を除く): 56336962

約数列:

[1, 2, 11, 22, 197, 394, 2167, 4334, 20161, 40322, 221771, 443542, 3971717, 7943434, 43688887, 87377774]

約数ペア:

[(1, 87377774), (2, 43688887), (11, 7943434), (22, 3971717), (197, 443542), (394, 221771), (2167, 40322), (4334, 20161)]