20668726

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{4877}}^1$

素因数の和:5055

約数の個数: 16

約数和(自身を含む): 33599664

約数和(自身を除く): 12930938

約数列:

[1, 2, 13, 26, 163, 326, 2119, 4238, 4877, 9754, 63401, 126802, 794951, 1589902, 10334363, 20668726]

約数ペア:

[(1, 20668726), (2, 10334363), (13, 1589902), (26, 794951), (163, 126802), (326, 63401), (2119, 9754), (4238, 4877)]