20711185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{1303}}^1$

素因数の和:1353

約数の個数: 24

約数和(自身を含む): 28823616

約数和(自身を除く): 8112431

約数列:

[1, 5, 11, 17, 55, 85, 187, 289, 935, 1303, 1445, 3179, 6515, 14333, 15895, 22151, 71665, 110755, 243661, 376567, 1218305, 1882835, 4142237, 20711185]

約数ペア:

[(1, 20711185), (5, 4142237), (11, 1882835), (17, 1218305), (55, 376567), (85, 243661), (187, 110755), (289, 71665), (935, 22151), (1303, 15895), (1445, 14333), (3179, 6515)]