20637609

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{3089}}^1$

素因数の和:3240

約数の個数: 16

約数和(自身を含む): 29367360

約数和(自身を除く): 8729751

約数列:

[1, 3, 17, 51, 131, 393, 2227, 3089, 6681, 9267, 52513, 157539, 404659, 1213977, 6879203, 20637609]

約数ペア:

[(1, 20637609), (3, 6879203), (17, 1213977), (51, 404659), (131, 157539), (393, 52513), (2227, 9267), (3089, 6681)]