20872635

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1451}}^1$

素因数の和:1603

約数の個数: 32

約数和(自身を含む): 38472192

約数和(自身を除く): 17599557

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 411, 685, 959, 1451, 2055, 2877, 4353, 4795, 7255, 10157, 14385, 21765, 30471, 50785, 152355, 198787, 596361, 993935, 1391509, 2981805, 4174527, 6957545, 20872635]

約数ペア:

[(1, 20872635), (3, 6957545), (5, 4174527), (7, 2981805), (15, 1391509), (21, 993935), (35, 596361), (105, 198787), (137, 152355), (411, 50785), (685, 30471), (959, 21765), (1451, 14385), (2055, 10157), (2877, 7255), (4353, 4795)]