21154798

素因数分解:

$2^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{10007}}^1$

素因数の和:10167

約数の個数: 16

約数和(自身を含む): 36509184

約数和(自身を除く): 15354386

約数列:

[1, 2, 7, 14, 151, 302, 1057, 2114, 10007, 20014, 70049, 140098, 1511057, 3022114, 10577399, 21154798]

約数ペア:

[(1, 21154798), (2, 10577399), (7, 3022114), (14, 1511057), (151, 140098), (302, 70049), (1057, 20014), (2114, 10007)]