20993031

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 31034640

約数和(自身を除く): 10041609

約数列:

[1, 3, 9, 97, 139, 173, 291, 417, 519, 873, 1251, 1557, 13483, 16781, 24047, 40449, 50343, 72141, 121347, 151029, 216423, 2332559, 6997677, 20993031]

約数ペア:

[(1, 20993031), (3, 6997677), (9, 2332559), (97, 216423), (139, 151029), (173, 121347), (291, 72141), (417, 50343), (519, 40449), (873, 24047), (1251, 16781), (1557, 13483)]