20517315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15031}}^1$

素因数の和:15059

約数の個数: 32

約数和(自身を含む): 40406016

約数和(自身を除く): 19888701

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15031, 45093, 75155, 105217, 195403, 225465, 315651, 526085, 586209, 977015, 1367821, 1578255, 2931045, 4103463, 6839105, 20517315]

約数ペア:

[(1, 20517315), (3, 6839105), (5, 4103463), (7, 2931045), (13, 1578255), (15, 1367821), (21, 977015), (35, 586209), (39, 526085), (65, 315651), (91, 225465), (105, 195403), (195, 105217), (273, 75155), (455, 45093), (1365, 15031)]