80853381

素因数分解:

$3^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1319}}^1$

素因数の和:1478

約数の個数: 36

約数和(自身を含む): 136936800

約数和(自身を除く): 56083419

約数列:

[1, 3, 7, 9, 21, 49, 63, 139, 147, 417, 441, 973, 1251, 1319, 2919, 3957, 6811, 8757, 9233, 11871, 20433, 27699, 61299, 64631, 83097, 183341, 193893, 550023, 581679, 1283387, 1650069, 3850161, 8983709, 11550483, 26951127, 80853381]

約数ペア:

[(1, 80853381), (3, 26951127), (7, 11550483), (9, 8983709), (21, 3850161), (49, 1650069), (63, 1283387), (139, 581679), (147, 550023), (417, 193893), (441, 183341), (973, 83097), (1251, 64631), (1319, 61299), (2919, 27699), (3957, 20433), (6811, 11871), (8757, 9233)]