21161895

素因数分解:

$3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{9343}}^1$

素因数の和:9502

約数の個数: 16

約数和(自身を含む): 34086912

約数和(自身を除く): 12925017

約数列:

[1, 3, 5, 15, 151, 453, 755, 2265, 9343, 28029, 46715, 140145, 1410793, 4232379, 7053965, 21161895]

約数ペア:

[(1, 21161895), (3, 7053965), (5, 4232379), (15, 1410793), (151, 140145), (453, 46715), (755, 28029), (2265, 9343)]