18547867

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 32

約数和(自身を含む): 22861440

約数和(自身を除く): 4313573

約数列:

[1, 13, 17, 23, 41, 89, 221, 299, 391, 533, 697, 943, 1157, 1513, 2047, 3649, 5083, 9061, 12259, 16031, 19669, 26611, 34799, 47437, 62033, 83927, 208403, 452387, 806429, 1091051, 1426759, 18547867]

約数ペア:

[(1, 18547867), (13, 1426759), (17, 1091051), (23, 806429), (41, 452387), (89, 208403), (221, 83927), (299, 62033), (391, 47437), (533, 34799), (697, 26611), (943, 19669), (1157, 16031), (1513, 12259), (2047, 9061), (3649, 5083)]