21516597

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{2579}}^1$

素因数の和:2694

約数の個数: 20

約数和(自身を含む): 32466720

約数和(自身を除く): 10950123

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2579, 2781, 7737, 8343, 23211, 69633, 208899, 265637, 796911, 2390733, 7172199, 21516597]

約数ペア:

[(1, 21516597), (3, 7172199), (9, 2390733), (27, 796911), (81, 265637), (103, 208899), (309, 69633), (927, 23211), (2579, 8343), (2781, 7737)]