20748165

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17509}}^1$

素因数の和:17596

約数の個数: 16

約数和(自身を含む): 33619200

約数和(自身を除く): 12871035

約数列:

[1, 3, 5, 15, 79, 237, 395, 1185, 17509, 52527, 87545, 262635, 1383211, 4149633, 6916055, 20748165]

約数ペア:

[(1, 20748165), (3, 6916055), (5, 4149633), (15, 1383211), (79, 262635), (237, 87545), (395, 52527), (1185, 17509)]