11391471

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2020

約数の個数: 36

約数和(自身を含む): 20623512

約数和(自身を除く): 9232041

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 1987, 5733, 5961, 13909, 17883, 25831, 41727, 77493, 97363, 125181, 180817, 232479, 292089, 542451, 876267, 1265719, 1627353, 3797157, 11391471]

約数ペア:

[(1, 11391471), (3, 3797157), (7, 1627353), (9, 1265719), (13, 876267), (21, 542451), (39, 292089), (49, 232479), (63, 180817), (91, 125181), (117, 97363), (147, 77493), (273, 41727), (441, 25831), (637, 17883), (819, 13909), (1911, 5961), (1987, 5733)]