21404220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{356737}}^1$

素因数の和:356749

約数の個数: 24

約数和(自身を含む): 59931984

約数和(自身を除く): 38527764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 356737, 713474, 1070211, 1426948, 1783685, 2140422, 3567370, 4280844, 5351055, 7134740, 10702110, 21404220]

約数ペア:

[(1, 21404220), (2, 10702110), (3, 7134740), (4, 5351055), (5, 4280844), (6, 3567370), (10, 2140422), (12, 1783685), (15, 1426948), (20, 1070211), (30, 713474), (60, 356737)]