18869421

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{1481}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 26178048

約数和(自身を除く): 7308627

約数列:

[1, 3, 31, 93, 137, 411, 1481, 4247, 4443, 12741, 45911, 137733, 202897, 608691, 6289807, 18869421]

約数ペア:

[(1, 18869421), (3, 6289807), (31, 608691), (93, 202897), (137, 137733), (411, 45911), (1481, 12741), (4247, 4443)]