15721214139

素因数分解:

$3^2\times {\mathrm{701}}^1\times {\mathrm{2491871}}^1$

素因数の和:2492578

約数の個数: 12

約数和(自身を含む): 22740823872

約数和(自身を除く): 7019609733

約数列:

[1, 3, 9, 701, 2103, 6309, 2491871, 7475613, 22426839, 1746801571, 5240404713, 15721214139]

約数ペア:

[(1, 15721214139), (3, 5240404713), (9, 1746801571), (701, 22426839), (2103, 7475613), (6309, 2491871)]