21306164

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44021}}^1$

素因数の和:44047

約数の個数: 18

約数和(自身を含む): 40984482

約数和(自身を除く): 19678318

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44021, 88042, 176084, 484231, 968462, 1936924, 5326541, 10653082, 21306164]

約数ペア:

[(1, 21306164), (2, 10653082), (4, 5326541), (11, 1936924), (22, 968462), (44, 484231), (121, 176084), (242, 88042), (484, 44021)]