21060265

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5407}}^1$

素因数の和:5472

約数の個数: 16

約数和(自身を含む): 27256320

約数和(自身を除く): 6196055

約数列:

[1, 5, 19, 41, 95, 205, 779, 3895, 5407, 27035, 102733, 221687, 513665, 1108435, 4212053, 21060265]

約数ペア:

[(1, 21060265), (5, 4212053), (19, 1108435), (41, 513665), (95, 221687), (205, 102733), (779, 27035), (3895, 5407)]