20668797

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{18671}}^1$

素因数の和:18721

約数の個数: 16

約数和(自身を含む): 31368960

約数和(自身を除く): 10700163

約数列:

[1, 3, 9, 27, 41, 123, 369, 1107, 18671, 56013, 168039, 504117, 765511, 2296533, 6889599, 20668797]

約数ペア:

[(1, 20668797), (3, 6889599), (9, 2296533), (27, 765511), (41, 504117), (123, 168039), (369, 56013), (1107, 18671)]