20537870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120811}}^1$

素因数の和:120835

約数の個数: 16

約数和(自身を含む): 39143088

約数和(自身を除く): 18605218

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 120811, 241622, 604055, 1208110, 2053787, 4107574, 10268935, 20537870]

約数ペア:

[(1, 20537870), (2, 10268935), (5, 4107574), (10, 2053787), (17, 1208110), (34, 604055), (85, 241622), (170, 120811)]