20256981

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{3251}}^1$

素因数の和:3352

約数の個数: 16

約数和(自身を含む): 28305408

約数和(自身を除く): 8048427

約数列:

[1, 3, 31, 67, 93, 201, 2077, 3251, 6231, 9753, 100781, 217817, 302343, 653451, 6752327, 20256981]

約数ペア:

[(1, 20256981), (3, 6752327), (31, 653451), (67, 302343), (93, 217817), (201, 100781), (2077, 9753), (3251, 6231)]