81648321

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{7537}}^1$

素因数の和:7720

約数の個数: 16

約数和(自身を含む): 114336384

約数和(自身を除く): 32688063

約数列:

[1, 3, 23, 69, 157, 471, 3611, 7537, 10833, 22611, 173351, 520053, 1183309, 3549927, 27216107, 81648321]

約数ペア:

[(1, 81648321), (3, 27216107), (23, 3549927), (69, 1183309), (157, 520053), (471, 173351), (3611, 22611), (7537, 10833)]