20339949

素因数分解:

$3^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{773}}^1$

素因数の和:969

約数の個数: 24

約数和(自身を含む): 31764960

約数和(自身を除く): 11425011

約数列:

[1, 3, 7, 21, 49, 147, 179, 537, 773, 1253, 2319, 3759, 5411, 8771, 16233, 26313, 37877, 113631, 138367, 415101, 968569, 2905707, 6779983, 20339949]

約数ペア:

[(1, 20339949), (3, 6779983), (7, 2905707), (21, 968569), (49, 415101), (147, 138367), (179, 113631), (537, 37877), (773, 26313), (1253, 16233), (2319, 8771), (3759, 5411)]