20787580807

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{467}}^1\times {\mathrm{53437}}^1$

素因数の和:53935

約数の個数: 24

約数和(自身を含む): 25659217584

約数和(自身を除く): 4871636777

約数列:

[1, 7, 17, 49, 119, 467, 833, 3269, 7939, 22883, 53437, 55573, 374059, 389011, 908429, 2618413, 6359003, 24955079, 44513021, 174685553, 424236343, 1222798871, 2969654401, 20787580807]

約数ペア:

[(1, 20787580807), (7, 2969654401), (17, 1222798871), (49, 424236343), (119, 174685553), (467, 44513021), (833, 24955079), (3269, 6359003), (7939, 2618413), (22883, 908429), (53437, 389011), (55573, 374059)]