19494215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{677}}^1$

素因数の和:1138

約数の個数: 16

約数和(自身を含む): 25286688

約数和(自身を除く): 5792473

約数列:

[1, 5, 13, 65, 443, 677, 2215, 3385, 5759, 8801, 28795, 44005, 299911, 1499555, 3898843, 19494215]

約数ペア:

[(1, 19494215), (5, 3898843), (13, 1499555), (65, 299911), (443, 44005), (677, 28795), (2215, 8801), (3385, 5759)]