20329705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{1279}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 28293120

約数和(自身を除く): 7963415

約数列:

[1, 5, 11, 17, 55, 85, 187, 289, 935, 1279, 1445, 3179, 6395, 14069, 15895, 21743, 70345, 108715, 239173, 369631, 1195865, 1848155, 4065941, 20329705]

約数ペア:

[(1, 20329705), (5, 4065941), (11, 1848155), (17, 1195865), (55, 369631), (85, 239173), (187, 108715), (289, 70345), (935, 21743), (1279, 15895), (1445, 14069), (3179, 6395)]