20728359

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1151}}^1$

素因数の和:1212

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12449241

約数列:

[1, 3, 9, 23, 27, 29, 69, 87, 207, 261, 621, 667, 783, 1151, 2001, 3453, 6003, 10359, 18009, 26473, 31077, 33379, 79419, 100137, 238257, 300411, 714771, 767717, 901233, 2303151, 6909453, 20728359]

約数ペア:

[(1, 20728359), (3, 6909453), (9, 2303151), (23, 901233), (27, 767717), (29, 714771), (69, 300411), (87, 238257), (207, 100137), (261, 79419), (621, 33379), (667, 31077), (783, 26473), (1151, 18009), (2001, 10359), (3453, 6003)]