18468541

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{367}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 23493120

約数和(自身を除く): 5024579

約数列:

[1, 7, 13, 49, 79, 91, 367, 553, 637, 1027, 2569, 3871, 4771, 7189, 17983, 28993, 33397, 50323, 202951, 233779, 376909, 1420657, 2638363, 18468541]

約数ペア:

[(1, 18468541), (7, 2638363), (13, 1420657), (49, 376909), (79, 233779), (91, 202951), (367, 50323), (553, 33397), (637, 28993), (1027, 17983), (2569, 7189), (3871, 4771)]