18725661

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{1531}}^1$

素因数の和:1694

約数の個数: 20

約数和(自身を含む): 28176544

約数和(自身を除く): 9450883

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 1531, 4077, 4593, 12231, 13779, 41337, 124011, 231181, 693543, 2080629, 6241887, 18725661]

約数ペア:

[(1, 18725661), (3, 6241887), (9, 2080629), (27, 693543), (81, 231181), (151, 124011), (453, 41337), (1359, 13779), (1531, 12231), (4077, 4593)]