18556239

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 28191744

約数和(自身を除く): 9635505

約数列:

[1, 3, 13, 23, 39, 69, 137, 151, 299, 411, 453, 897, 1781, 1963, 3151, 3473, 5343, 5889, 9453, 10419, 20687, 40963, 45149, 62061, 122889, 135447, 268931, 475801, 806793, 1427403, 6185413, 18556239]

約数ペア:

[(1, 18556239), (3, 6185413), (13, 1427403), (23, 806793), (39, 475801), (69, 268931), (137, 135447), (151, 122889), (299, 62061), (411, 45149), (453, 40963), (897, 20687), (1781, 10419), (1963, 9453), (3151, 5889), (3473, 5343)]