13220165

素因数分解:

$5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{971}}^1$

素因数の和:1372

約数の個数: 16

約数和(自身を含む): 18195840

約数和(自身を除く): 4975675

約数列:

[1, 5, 7, 35, 389, 971, 1945, 2723, 4855, 6797, 13615, 33985, 377719, 1888595, 2644033, 13220165]

約数ペア:

[(1, 13220165), (5, 2644033), (7, 1888595), (35, 377719), (389, 33985), (971, 13615), (1945, 6797), (2723, 4855)]