209439587

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{13411}}^1$

素因数の和:13538

約数の個数: 16

約数和(自身を含む): 252360192

約数和(自身を除く): 42920605

約数列:

[1, 7, 23, 97, 161, 679, 2231, 13411, 15617, 93877, 308453, 1300867, 2159171, 9106069, 29919941, 209439587]

約数ペア:

[(1, 209439587), (7, 29919941), (23, 9106069), (97, 2159171), (161, 1300867), (679, 308453), (2231, 93877), (13411, 15617)]