20347587

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2851}}^1$

素因数の和:2931

約数の個数: 24

約数和(自身を含む): 32181968

約数和(自身を除く): 11834381

約数列:

[1, 3, 9, 13, 39, 61, 117, 183, 549, 793, 2379, 2851, 7137, 8553, 25659, 37063, 111189, 173911, 333567, 521733, 1565199, 2260843, 6782529, 20347587]

約数ペア:

[(1, 20347587), (3, 6782529), (9, 2260843), (13, 1565199), (39, 521733), (61, 333567), (117, 173911), (183, 111189), (549, 37063), (793, 25659), (2379, 8553), (2851, 7137)]