20516490621

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{645599}}^1$

素因数の和:645726

約数の個数: 32

約数和(自身を含む): 33467904000

約数和(自身を除く): 12951413379

約数列:

[1, 3, 9, 11, 27, 33, 99, 107, 297, 321, 963, 1177, 2889, 3531, 10593, 31779, 645599, 1936797, 5810391, 7101589, 17431173, 21304767, 63914301, 69079093, 191742903, 207237279, 621711837, 759870023, 1865135511, 2279610069, 6838830207, 20516490621]

約数ペア:

[(1, 20516490621), (3, 6838830207), (9, 2279610069), (11, 1865135511), (27, 759870023), (33, 621711837), (99, 207237279), (107, 191742903), (297, 69079093), (321, 63914301), (963, 21304767), (1177, 17431173), (2889, 7101589), (3531, 5810391), (10593, 1936797), (31779, 645599)]