20893545

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2243}}^1$

素因数の和:2283

約数の個数: 40

約数和(自身を含む): 39099456

約数和(自身を除く): 18205911

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 2243, 3105, 6729, 9315, 11215, 20187, 33645, 51589, 60561, 100935, 154767, 181683, 257945, 302805, 464301, 773835, 908415, 1392903, 2321505, 4178709, 6964515, 20893545]

約数ペア:

[(1, 20893545), (3, 6964515), (5, 4178709), (9, 2321505), (15, 1392903), (23, 908415), (27, 773835), (45, 464301), (69, 302805), (81, 257945), (115, 181683), (135, 154767), (207, 100935), (345, 60561), (405, 51589), (621, 33645), (1035, 20187), (1863, 11215), (2243, 9315), (3105, 6729)]