20998377

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1031}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 31769088

約数和(自身を除く): 10770711

約数列:

[1, 3, 9, 31, 73, 93, 219, 279, 657, 1031, 2263, 3093, 6789, 9279, 20367, 31961, 75263, 95883, 225789, 287649, 677367, 2333153, 6999459, 20998377]

約数ペア:

[(1, 20998377), (3, 6999459), (9, 2333153), (31, 677367), (73, 287649), (93, 225789), (219, 95883), (279, 75263), (657, 31961), (1031, 20367), (2263, 9279), (3093, 6789)]