21537441

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21559}}^1$

素因数の和:21605

約数の個数: 16

約数和(自身を含む): 32771200

約数和(自身を除く): 11233759

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21559, 64677, 194031, 582093, 797683, 2393049, 7179147, 21537441]

約数ペア:

[(1, 21537441), (3, 7179147), (9, 2393049), (27, 797683), (37, 582093), (111, 194031), (333, 64677), (999, 21559)]