20313587

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 25039872

約数和(自身を除く): 4726285

約数列:

[1, 7, 31, 43, 49, 217, 301, 311, 1333, 1519, 2107, 2177, 9331, 9641, 13373, 15239, 65317, 67487, 93611, 414563, 472409, 655277, 2901941, 20313587]

約数ペア:

[(1, 20313587), (7, 2901941), (31, 655277), (43, 472409), (49, 414563), (217, 93611), (301, 67487), (311, 65317), (1333, 15239), (1519, 13373), (2107, 9641), (2177, 9331)]