31009311

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{20149}}^1$

素因数の和:20180

約数の個数: 20

約数和(自身を含む): 48763000

約数和(自身を除く): 17753689

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 20149, 60447, 181341, 382831, 544023, 1148493, 1632069, 3445479, 10336437, 31009311]

約数ペア:

[(1, 31009311), (3, 10336437), (9, 3445479), (19, 1632069), (27, 1148493), (57, 544023), (81, 382831), (171, 181341), (513, 60447), (1539, 20149)]