18839541

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21881}}^1$

素因数の和:21932

約数の個数: 16

約数和(自身を含む): 29409408

約数和(自身を除く): 10569867

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 21881, 65643, 153167, 459501, 897121, 2691363, 6279847, 18839541]

約数ペア:

[(1, 18839541), (3, 6279847), (7, 2691363), (21, 897121), (41, 459501), (123, 153167), (287, 65643), (861, 21881)]