31720479

素因数分解:

$3^1\times 7^1\times {\mathrm{1181}}^1\times {\mathrm{1279}}^1$

素因数の和:2470

約数の個数: 16

約数和(自身を含む): 48414720

約数和(自身を除く): 16694241

約数列:

[1, 3, 7, 21, 1181, 1279, 3543, 3837, 8267, 8953, 24801, 26859, 1510499, 4531497, 10573493, 31720479]

約数ペア:

[(1, 31720479), (3, 10573493), (7, 4531497), (21, 1510499), (1181, 26859), (1279, 24801), (3543, 8953), (3837, 8267)]