21879897

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{5147}}^1$

素因数の和:5272

約数の個数: 16

約数和(自身を含む): 31711680

約数和(自身を除く): 9831783

約数列:

[1, 3, 13, 39, 109, 327, 1417, 4251, 5147, 15441, 66911, 200733, 561023, 1683069, 7293299, 21879897]

約数ペア:

[(1, 21879897), (3, 7293299), (13, 1683069), (39, 561023), (109, 200733), (327, 66911), (1417, 15441), (4251, 5147)]