20055217

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{3019}}^1$

素因数の和:3112

約数の個数: 16

約数和(自身を含む): 25029760

約数和(自身を除く): 4974543

約数列:

[1, 7, 13, 73, 91, 511, 949, 3019, 6643, 21133, 39247, 220387, 274729, 1542709, 2865031, 20055217]

約数ペア:

[(1, 20055217), (7, 2865031), (13, 1542709), (73, 274729), (91, 220387), (511, 39247), (949, 21133), (3019, 6643)]