20686085

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3671}}^1$

素因数の和:3713

約数の個数: 24

約数和(自身を含む): 30139776

約数和(自身を除く): 9453691

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 805, 1127, 3671, 5635, 18355, 25697, 84433, 128485, 179879, 422165, 591031, 899395, 2955155, 4137217, 20686085]

約数ペア:

[(1, 20686085), (5, 4137217), (7, 2955155), (23, 899395), (35, 591031), (49, 422165), (115, 179879), (161, 128485), (245, 84433), (805, 25697), (1127, 18355), (3671, 5635)]