21281030491

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{787807}}^1$

素因数の和:788058

約数の個数: 16

約数和(自身を含む): 25865312256

約数和(自身を除く): 4584281765

約数列:

[1, 7, 17, 119, 227, 1589, 3859, 27013, 787807, 5514649, 13392719, 93749033, 178832189, 1251825323, 3040147213, 21281030491]

約数ペア:

[(1, 21281030491), (7, 3040147213), (17, 1251825323), (119, 178832189), (227, 93749033), (1589, 13392719), (3859, 5514649), (27013, 787807)]