20837805

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47903}}^1$

素因数の和:47940

約数の個数: 16

約数和(自身を含む): 34490880

約数和(自身を除く): 13653075

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 47903, 143709, 239515, 718545, 1389187, 4167561, 6945935, 20837805]

約数ペア:

[(1, 20837805), (3, 6945935), (5, 4167561), (15, 1389187), (29, 718545), (87, 239515), (145, 143709), (435, 47903)]