20861533

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{15937}}^1$

素因数の和:15972

約数の個数: 16

約数和(自身を含む): 27540864

約数和(自身を除く): 6679331

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 15937, 111559, 175307, 270929, 1227149, 1896503, 2980219, 20861533]

約数ペア:

[(1, 20861533), (7, 2980219), (11, 1896503), (17, 1227149), (77, 270929), (119, 175307), (187, 111559), (1309, 15937)]