21659450

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{4289}}^1$

素因数の和:4402

約数の個数: 24

約数和(自身を含む): 40694940

約数和(自身を除く): 19035490

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 4289, 5050, 8578, 21445, 42890, 107225, 214450, 433189, 866378, 2165945, 4331890, 10829725, 21659450]

約数ペア:

[(1, 21659450), (2, 10829725), (5, 4331890), (10, 2165945), (25, 866378), (50, 433189), (101, 214450), (202, 107225), (505, 42890), (1010, 21445), (2525, 8578), (4289, 5050)]