21268039

素因数分解:

${\mathrm{13}}^1\times {\mathrm{73}}^2\times {\mathrm{307}}^1$

素因数の和:466

約数の個数: 12

約数和(自身を含む): 23297736

約数和(自身を除く): 2029697

約数列:

[1, 13, 73, 307, 949, 3991, 5329, 22411, 69277, 291343, 1636003, 21268039]

約数ペア:

[(1, 21268039), (13, 1636003), (73, 291343), (307, 69277), (949, 22411), (3991, 5329)]