20187172031

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{311}}^1\times {\mathrm{769}}^1$

素因数の和:1287

約数の個数: 32

約数和(自身を含む): 22494151680

約数和(自身を除く): 2306979649

約数列:

[1, 13, 43, 151, 311, 559, 769, 1963, 4043, 6493, 9997, 13373, 33067, 46961, 84409, 116119, 173849, 239159, 429871, 610493, 1509547, 2019323, 3109067, 4993117, 10283837, 26251199, 36113009, 64910521, 133689881, 469469117, 1552859387, 20187172031]

約数ペア:

[(1, 20187172031), (13, 1552859387), (43, 469469117), (151, 133689881), (311, 64910521), (559, 36113009), (769, 26251199), (1963, 10283837), (4043, 4993117), (6493, 3109067), (9997, 2019323), (13373, 1509547), (33067, 610493), (46961, 429871), (84409, 239159), (116119, 173849)]