28172179

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{3881}}^1$

素因数の和:3966

約数の個数: 16

約数和(自身を含む): 34658496

約数和(自身を除く): 6486317

約数列:

[1, 7, 17, 61, 119, 427, 1037, 3881, 7259, 27167, 65977, 236741, 461839, 1657187, 4024597, 28172179]

約数ペア:

[(1, 28172179), (7, 4024597), (17, 1657187), (61, 461839), (119, 236741), (427, 65977), (1037, 27167), (3881, 7259)]