20391495

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{46877}}^1$

素因数の和:46914

約数の個数: 16

約数和(自身を含む): 33752160

約数和(自身を除く): 13360665

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 46877, 140631, 234385, 703155, 1359433, 4078299, 6797165, 20391495]

約数ペア:

[(1, 20391495), (3, 6797165), (5, 4078299), (15, 1359433), (29, 703155), (87, 234385), (145, 140631), (435, 46877)]