19756953

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1637}}^1$

素因数の和:1798

約数の個数: 20

約数和(自身を含む): 29729700

約数和(自身を除く): 9972747

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 1637, 4023, 4911, 12069, 14733, 44199, 132597, 243913, 731739, 2195217, 6585651, 19756953]

約数ペア:

[(1, 19756953), (3, 6585651), (9, 2195217), (27, 731739), (81, 243913), (149, 132597), (447, 44199), (1341, 14733), (1637, 12069), (4023, 4911)]