20516505

素因数分解:

$3^1\times 5^1\times {\mathrm{883}}^1\times {\mathrm{1549}}^1$

素因数の和:2440

約数の個数: 16

約数和(自身を含む): 32884800

約数和(自身を除く): 12368295

約数列:

[1, 3, 5, 15, 883, 1549, 2649, 4415, 4647, 7745, 13245, 23235, 1367767, 4103301, 6838835, 20516505]

約数ペア:

[(1, 20516505), (3, 6838835), (5, 4103301), (15, 1367767), (883, 23235), (1549, 13245), (2649, 7745), (4415, 4647)]