20621479

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 22650880

約数和(自身を除く): 2029401

約数列:

[1, 19, 31, 157, 223, 589, 2983, 4237, 4867, 6913, 35011, 92473, 131347, 665209, 1085341, 20621479]

約数ペア:

[(1, 20621479), (19, 1085341), (31, 665209), (157, 131347), (223, 92473), (589, 35011), (2983, 6913), (4237, 4867)]