20975246

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8689}}^1$

素因数の和:8779

約数の個数: 16

約数和(自身を含む): 33786720

約数和(自身を除く): 12811474

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8689, 17378, 147713, 295426, 616919, 1233838, 10487623, 20975246]

約数ペア:

[(1, 20975246), (2, 10487623), (17, 1233838), (34, 616919), (71, 295426), (142, 147713), (1207, 17378), (2414, 8689)]