20912185

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4561}}^1$

素因数の和:4704

約数の個数: 16

約数和(自身を含む): 28904832

約数和(自身を除く): 7992647

約数列:

[1, 5, 7, 35, 131, 655, 917, 4561, 4585, 22805, 31927, 159635, 597491, 2987455, 4182437, 20912185]

約数ペア:

[(1, 20912185), (5, 4182437), (7, 2987455), (35, 597491), (131, 159635), (655, 31927), (917, 22805), (4561, 4585)]