21275722

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{9859}}^1$

素因数の和:9957

約数の個数: 16

約数和(自身を含む): 34786080

約数和(自身を除く): 13510358

約数列:

[1, 2, 13, 26, 83, 166, 1079, 2158, 9859, 19718, 128167, 256334, 818297, 1636594, 10637861, 21275722]

約数ペア:

[(1, 21275722), (2, 10637861), (13, 1636594), (26, 818297), (83, 256334), (166, 128167), (1079, 19718), (2158, 9859)]