21265761

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13711}}^1$

素因数の和:13772

約数の個数: 16

約数和(自身を含む): 31592448

約数和(自身を除く): 10326687

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13711, 41133, 150821, 452463, 644417, 1933251, 7088587, 21265761]

約数ペア:

[(1, 21265761), (3, 7088587), (11, 1933251), (33, 644417), (47, 452463), (141, 150821), (517, 41133), (1551, 13711)]