20798635

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1579

約数の個数: 32

約数和(自身を含む): 30885120

約数和(自身を除く): 10086485

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 247, 715, 1045, 1235, 1531, 2717, 7655, 13585, 16841, 19903, 29089, 84205, 99515, 145445, 218933, 319979, 378157, 1094665, 1599895, 1890785, 4159727, 20798635]

約数ペア:

[(1, 20798635), (5, 4159727), (11, 1890785), (13, 1599895), (19, 1094665), (55, 378157), (65, 319979), (95, 218933), (143, 145445), (209, 99515), (247, 84205), (715, 29089), (1045, 19903), (1235, 16841), (1531, 13585), (2717, 7655)]