28120053

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 44593920

約数和(自身を除く): 16473867

約数列:

[1, 3, 13, 23, 29, 39, 47, 69, 87, 141, 299, 377, 529, 611, 667, 897, 1081, 1131, 1363, 1587, 1833, 2001, 3243, 4089, 6877, 8671, 14053, 15341, 17719, 20631, 24863, 26013, 31349, 42159, 46023, 53157, 74589, 94047, 199433, 323219, 407537, 598299, 721027, 969657, 1222611, 2163081, 9373351, 28120053]

約数ペア:

[(1, 28120053), (3, 9373351), (13, 2163081), (23, 1222611), (29, 969657), (39, 721027), (47, 598299), (69, 407537), (87, 323219), (141, 199433), (299, 94047), (377, 74589), (529, 53157), (611, 46023), (667, 42159), (897, 31349), (1081, 26013), (1131, 24863), (1363, 20631), (1587, 17719), (1833, 15341), (2001, 14053), (3243, 8671), (4089, 6877)]