21982765

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{15319}}^1$

素因数の和:15372

約数の個数: 16

約数和(自身を含む): 30885120

約数和(自身を除く): 8902355

約数列:

[1, 5, 7, 35, 41, 205, 287, 1435, 15319, 76595, 107233, 536165, 628079, 3140395, 4396553, 21982765]

約数ペア:

[(1, 21982765), (5, 4396553), (7, 3140395), (35, 628079), (41, 536165), (205, 107233), (287, 76595), (1435, 15319)]