16921315

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 20956320

約数和(自身を除く): 4035005

約数列:

[1, 5, 41, 197, 205, 419, 985, 2095, 8077, 17179, 40385, 82543, 85895, 412715, 3384263, 16921315]

約数ペア:

[(1, 16921315), (5, 3384263), (41, 412715), (197, 85895), (205, 82543), (419, 40385), (985, 17179), (2095, 8077)]