20856506

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4493}}^1$

素因数の和:4717

約数の個数: 16

約数和(自身を含む): 34298208

約数和(自身を除く): 13441702

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4493, 4642, 8986, 49423, 98846, 948023, 1896046, 10428253, 20856506]

約数ペア:

[(1, 20856506), (2, 10428253), (11, 1896046), (22, 948023), (211, 98846), (422, 49423), (2321, 8986), (4493, 4642)]