20472489

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 30630600

約数和(自身を除く): 10158111

約数列:

[1, 3, 9, 41, 109, 123, 327, 369, 509, 981, 1527, 4469, 4581, 13407, 20869, 40221, 55481, 62607, 166443, 187821, 499329, 2274721, 6824163, 20472489]

約数ペア:

[(1, 20472489), (3, 6824163), (9, 2274721), (41, 499329), (109, 187821), (123, 166443), (327, 62607), (369, 55481), (509, 40221), (981, 20869), (1527, 13407), (4469, 4581)]