209821918

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{701}}^1\times {\mathrm{1453}}^1$

素因数の和:2259

約数の個数: 16

約数和(自身を含む): 318460896

約数和(自身を除く): 108638978

約数列:

[1, 2, 103, 206, 701, 1402, 1453, 2906, 72203, 144406, 149659, 299318, 1018553, 2037106, 104910959, 209821918]

約数ペア:

[(1, 209821918), (2, 104910959), (103, 2037106), (206, 1018553), (701, 299318), (1402, 149659), (1453, 144406), (2906, 72203)]