20831889

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 31409280

約数和(自身を除く): 10577391

約数列:

[1, 3, 13, 29, 39, 87, 113, 163, 339, 377, 489, 1131, 1469, 2119, 3277, 4407, 4727, 6357, 9831, 14181, 18419, 42601, 55257, 61451, 127803, 184353, 239447, 534151, 718341, 1602453, 6943963, 20831889]

約数ペア:

[(1, 20831889), (3, 6943963), (13, 1602453), (29, 718341), (39, 534151), (87, 239447), (113, 184353), (163, 127803), (339, 61451), (377, 55257), (489, 42601), (1131, 18419), (1469, 14181), (2119, 9831), (3277, 6357), (4407, 4727)]