21557591

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:526

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 2703529

約数列:

[1, 11, 53, 103, 359, 583, 1133, 3949, 5459, 19027, 36977, 60049, 209297, 406747, 1959781, 21557591]

約数ペア:

[(1, 21557591), (11, 1959781), (53, 406747), (103, 209297), (359, 60049), (583, 36977), (1133, 19027), (3949, 5459)]