220121918

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1\times {\mathrm{3943}}^1$

素因数の和:4319

約数の個数: 16

約数和(自身を含む): 334703616

約数和(自身を除く): 114581698

約数列:

[1, 2, 103, 206, 271, 542, 3943, 7886, 27913, 55826, 406129, 812258, 1068553, 2137106, 110060959, 220121918]

約数ペア:

[(1, 220121918), (2, 110060959), (103, 2137106), (206, 1068553), (271, 812258), (542, 406129), (3943, 55826), (7886, 27913)]