31212945

素因数分解:

$3^4\times 5^1\times {\mathrm{77069}}^1$

素因数の和:77086

約数の個数: 20

約数和(自身を含む): 55952820

約数和(自身を除く): 24739875

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 77069, 231207, 385345, 693621, 1156035, 2080863, 3468105, 6242589, 10404315, 31212945]

約数ペア:

[(1, 31212945), (3, 10404315), (5, 6242589), (9, 3468105), (15, 2080863), (27, 1156035), (45, 693621), (81, 385345), (135, 231207), (405, 77069)]