20928885

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8887}}^1$

素因数の和:9052

約数の個数: 16

約数和(自身を含む): 33703296

約数和(自身を除く): 12774411

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 8887, 26661, 44435, 133305, 1395259, 4185777, 6976295, 20928885]

約数ペア:

[(1, 20928885), (3, 6976295), (5, 4185777), (15, 1395259), (157, 133305), (471, 44435), (785, 26661), (2355, 8887)]