20139427

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{311}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 26088192

約数和(自身を除く): 5948765

約数列:

[1, 7, 11, 29, 77, 203, 311, 319, 841, 2177, 2233, 3421, 5887, 9019, 9251, 23947, 63133, 64757, 99209, 261551, 694463, 1830857, 2877061, 20139427]

約数ペア:

[(1, 20139427), (7, 2877061), (11, 1830857), (29, 694463), (77, 261551), (203, 99209), (311, 64757), (319, 63133), (841, 23947), (2177, 9251), (2233, 9019), (3421, 5887)]