12972681

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 19443840

約数和(自身を除く): 6471159

約数列:

[1, 3, 9, 37, 111, 163, 239, 333, 489, 717, 1467, 2151, 6031, 8843, 18093, 26529, 38957, 54279, 79587, 116871, 350613, 1441409, 4324227, 12972681]

約数ペア:

[(1, 12972681), (3, 4324227), (9, 1441409), (37, 350613), (111, 116871), (163, 79587), (239, 54279), (333, 38957), (489, 26529), (717, 18093), (1467, 8843), (2151, 6031)]