20881624

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{90007}}^1$

素因数の和:90042

約数の個数: 16

約数和(自身を含む): 40503600

約数和(自身を除く): 19621976

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 90007, 180014, 360028, 720056, 2610203, 5220406, 10440812, 20881624]

約数ペア:

[(1, 20881624), (2, 10440812), (4, 5220406), (8, 2610203), (29, 720056), (58, 360028), (116, 180014), (232, 90007)]