31165981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{821}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 42612480

約数和(自身を除く): 11446499

約数列:

[1, 7, 11, 17, 29, 77, 119, 187, 203, 319, 493, 821, 1309, 2233, 3451, 5423, 5747, 9031, 13957, 23809, 37961, 63217, 97699, 153527, 166663, 261899, 404753, 1074689, 1833293, 2833271, 4452283, 31165981]

約数ペア:

[(1, 31165981), (7, 4452283), (11, 2833271), (17, 1833293), (29, 1074689), (77, 404753), (119, 261899), (187, 166663), (203, 153527), (319, 97699), (493, 63217), (821, 37961), (1309, 23809), (2233, 13957), (3451, 9031), (5423, 5747)]