18907918

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1\times {\mathrm{457}}^1$

素因数の和:747

約数の個数: 16

約数和(自身を含む): 28821024

約数和(自身を除く): 9913106

約数列:

[1, 2, 137, 151, 274, 302, 457, 914, 20687, 41374, 62609, 69007, 125218, 138014, 9453959, 18907918]

約数ペア:

[(1, 18907918), (2, 9453959), (137, 138014), (151, 125218), (274, 69007), (302, 62609), (457, 41374), (914, 20687)]