20743154

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2131}}^1$

素因数の和:2321

約数の個数: 16

約数和(自身を含む): 32338176

約数和(自身を除く): 11595022

約数列:

[1, 2, 31, 62, 157, 314, 2131, 4262, 4867, 9734, 66061, 132122, 334567, 669134, 10371577, 20743154]

約数ペア:

[(1, 20743154), (2, 10371577), (31, 669134), (62, 334567), (157, 132122), (314, 66061), (2131, 9734), (4262, 4867)]