87831401

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 113633280

約数和(自身を除く): 25801879

約数列:

[1, 7, 17, 29, 31, 119, 203, 217, 493, 527, 821, 899, 3451, 3689, 5747, 6293, 13957, 15283, 23809, 25451, 97699, 106981, 166663, 178157, 404753, 432667, 738079, 2833271, 3028669, 5166553, 12547343, 87831401]

約数ペア:

[(1, 87831401), (7, 12547343), (17, 5166553), (29, 3028669), (31, 2833271), (119, 738079), (203, 432667), (217, 404753), (493, 178157), (527, 166663), (821, 106981), (899, 97699), (3451, 25451), (3689, 23809), (5747, 15283), (6293, 13957)]