20528541

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6689}}^1$

素因数の和:6737

約数の個数: 24

約数和(自身を含む): 33396480

約数和(自身を除く): 12867939

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 1023, 3069, 6689, 20067, 60201, 73579, 207359, 220737, 622077, 662211, 1866231, 2280949, 6842847, 20528541]

約数ペア:

[(1, 20528541), (3, 6842847), (9, 2280949), (11, 1866231), (31, 662211), (33, 622077), (93, 220737), (99, 207359), (279, 73579), (341, 60201), (1023, 20067), (3069, 6689)]