21139723

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2467}}^1$

素因数の和:2538

約数の個数: 16

約数和(自身を含む): 24877440

約数和(自身を除く): 3737717

約数列:

[1, 11, 19, 41, 209, 451, 779, 2467, 8569, 27137, 46873, 101147, 515603, 1112617, 1921793, 21139723]

約数ペア:

[(1, 21139723), (11, 1921793), (19, 1112617), (41, 515603), (209, 101147), (451, 46873), (779, 27137), (2467, 8569)]