21122959

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8689}}^1$

素因数の和:8730

約数の個数: 16

約数和(自身を含む): 26278560

約数和(自身を除く): 5155601

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8689, 95579, 112957, 147713, 1242527, 1624843, 1920269, 21122959]

約数ペア:

[(1, 21122959), (11, 1920269), (13, 1624843), (17, 1242527), (143, 147713), (187, 112957), (221, 95579), (2431, 8689)]