20507289

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{32707}}^1$

素因数の和:32740

約数の個数: 16

約数和(自身を含む): 31399680

約数和(自身を除く): 10892391

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 32707, 98121, 359777, 621433, 1079331, 1864299, 6835763, 20507289]

約数ペア:

[(1, 20507289), (3, 6835763), (11, 1864299), (19, 1079331), (33, 621433), (57, 359777), (209, 98121), (627, 32707)]