20566685

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 26907936

約数和(自身を除く): 6341251

約数列:

[1, 5, 17, 43, 85, 215, 289, 331, 731, 1445, 1655, 3655, 5627, 12427, 14233, 28135, 62135, 71165, 95659, 241961, 478295, 1209805, 4113337, 20566685]

約数ペア:

[(1, 20566685), (5, 4113337), (17, 1209805), (43, 478295), (85, 241961), (215, 95659), (289, 71165), (331, 62135), (731, 28135), (1445, 14233), (1655, 12427), (3655, 5627)]