20418597

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1231}}^1$

素因数の和:1353

約数の個数: 24

約数和(自身を含む): 31391360

約数和(自身を除く): 10972763

約数列:

[1, 3, 9, 19, 57, 97, 171, 291, 873, 1231, 1843, 3693, 5529, 11079, 16587, 23389, 70167, 119407, 210501, 358221, 1074663, 2268733, 6806199, 20418597]

約数ペア:

[(1, 20418597), (3, 6806199), (9, 2268733), (19, 1074663), (57, 358221), (97, 210501), (171, 119407), (291, 70167), (873, 23389), (1231, 16587), (1843, 11079), (3693, 5529)]