20988808

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{90469}}^1$

素因数の和:90504

約数の個数: 16

約数和(自身を含む): 40711500

約数和(自身を除く): 19722692

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 90469, 180938, 361876, 723752, 2623601, 5247202, 10494404, 20988808]

約数ペア:

[(1, 20988808), (2, 10494404), (4, 5247202), (8, 2623601), (29, 723752), (58, 361876), (116, 180938), (232, 90469)]