21528554

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{541}}^1$

素因数の和:841

約数の個数: 16

約数和(自身を含む): 32838696

約数和(自身を除く): 11310142

約数列:

[1, 2, 101, 197, 202, 394, 541, 1082, 19897, 39794, 54641, 106577, 109282, 213154, 10764277, 21528554]

約数ペア:

[(1, 21528554), (2, 10764277), (101, 213154), (197, 109282), (202, 106577), (394, 54641), (541, 39794), (1082, 19897)]