21000718529

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1\times {\mathrm{99529}}^1$

素因数の和:100280

約数の個数: 16

約数和(自身を含む): 24594261120

約数和(自身を除く): 3593542591

約数列:

[1, 7, 43, 301, 701, 4907, 30143, 99529, 211001, 696703, 4279747, 29958229, 69769829, 488388803, 3000102647, 21000718529]

約数ペア:

[(1, 21000718529), (7, 3000102647), (43, 488388803), (301, 69769829), (701, 29958229), (4907, 4279747), (30143, 696703), (99529, 211001)]