20428665711

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{1987031}}^1$

素因数の和:1987206

約数の個数: 16

約数和(自身を含む): 28613260800

約数和(自身を除く): 8184595089

約数列:

[1, 3, 23, 69, 149, 447, 3427, 10281, 1987031, 5961093, 45701713, 137105139, 296067619, 888202857, 6809555237, 20428665711]

約数ペア:

[(1, 20428665711), (3, 6809555237), (23, 888202857), (69, 296067619), (149, 137105139), (447, 45701713), (3427, 5961093), (10281, 1987031)]