221844154

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{688957}}^1$

素因数の和:688989

約数の個数: 16

約数和(自身を含む): 396839808

約数和(自身を除く): 174995654

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 688957, 1377914, 4822699, 9645398, 15846011, 31692022, 110922077, 221844154]

約数ペア:

[(1, 221844154), (2, 110922077), (7, 31692022), (14, 15846011), (23, 9645398), (46, 4822699), (161, 1377914), (322, 688957)]