21050267

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7691}}^1$

素因数の和:7738

約数の個数: 16

約数和(自身を含む): 26583552

約数和(自身を除く): 5533285

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7691, 53837, 130747, 176893, 915229, 1238251, 3007181, 21050267]

約数ペア:

[(1, 21050267), (7, 3007181), (17, 1238251), (23, 915229), (119, 176893), (161, 130747), (391, 53837), (2737, 7691)]