18831609

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1697}}^1$

素因数の和:1846

約数の個数: 20

約数和(自身を含む): 28353204

約数和(自身を除く): 9521595

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 1697, 3699, 5091, 11097, 15273, 45819, 137457, 232489, 697467, 2092401, 6277203, 18831609]

約数ペア:

[(1, 18831609), (3, 6277203), (9, 2092401), (27, 697467), (81, 232489), (137, 137457), (411, 45819), (1233, 15273), (1697, 11097), (3699, 5091)]