21906740

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4583}}^1$

素因数の和:4831

約数の個数: 24

約数和(自身を含む): 46206720

約数和(自身を除く): 24299980

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4583, 4780, 9166, 18332, 22915, 45830, 91660, 1095337, 2190674, 4381348, 5476685, 10953370, 21906740]

約数ペア:

[(1, 21906740), (2, 10953370), (4, 5476685), (5, 4381348), (10, 2190674), (20, 1095337), (239, 91660), (478, 45830), (956, 22915), (1195, 18332), (2390, 9166), (4583, 4780)]