20161245657

素因数分解:

$3^1\times 7^2\times {\mathrm{137151331}}^1$

素因数の和:137151348

約数の個数: 12

約数和(自身を含む): 31270503696

約数和(自身を除く): 11109258039

約数列:

[1, 3, 7, 21, 49, 147, 137151331, 411453993, 960059317, 2880177951, 6720415219, 20161245657]

約数ペア:

[(1, 20161245657), (3, 6720415219), (7, 2880177951), (21, 960059317), (49, 411453993), (147, 137151331)]