21146408

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{31847}}^1$

素因数の和:31936

約数の個数: 16

約数和(自身を含む): 40128480

約数和(自身を除く): 18982072

約数列:

[1, 2, 4, 8, 83, 166, 332, 664, 31847, 63694, 127388, 254776, 2643301, 5286602, 10573204, 21146408]

約数ペア:

[(1, 21146408), (2, 10573204), (4, 5286602), (8, 2643301), (83, 254776), (166, 127388), (332, 63694), (664, 31847)]