21864615

素因数分解:

$3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{4657}}^1$

素因数の和:4978

約数の個数: 16

約数和(自身を含む): 35102688

約数和(自身を除く): 13238073

約数列:

[1, 3, 5, 15, 313, 939, 1565, 4657, 4695, 13971, 23285, 69855, 1457641, 4372923, 7288205, 21864615]

約数ペア:

[(1, 21864615), (3, 7288205), (5, 4372923), (15, 1457641), (313, 69855), (939, 23285), (1565, 13971), (4657, 4695)]