20698555

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:510

約数の個数: 16

約数和(自身を含む): 25328160

約数和(自身を除く): 4629605

約数列:

[1, 5, 109, 163, 233, 545, 815, 1165, 17767, 25397, 37979, 88835, 126985, 189895, 4139711, 20698555]

約数ペア:

[(1, 20698555), (5, 4139711), (109, 189895), (163, 126985), (233, 88835), (545, 37979), (815, 25397), (1165, 17767)]