20320905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1151}}^1$

素因数の和:1277

約数の個数: 32

約数和(自身を含む): 35831808

約数和(自身を除く): 15510903

約数列:

[1, 3, 5, 11, 15, 33, 55, 107, 165, 321, 535, 1151, 1177, 1605, 3453, 3531, 5755, 5885, 12661, 17265, 17655, 37983, 63305, 123157, 189915, 369471, 615785, 1354727, 1847355, 4064181, 6773635, 20320905]

約数ペア:

[(1, 20320905), (3, 6773635), (5, 4064181), (11, 1847355), (15, 1354727), (33, 615785), (55, 369471), (107, 189915), (165, 123157), (321, 63305), (535, 37983), (1151, 17655), (1177, 17265), (1605, 12661), (3453, 5885), (3531, 5755)]