210920017

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{733}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 273118464

約数和(自身を除く): 62198447

約数列:

[1, 7, 11, 37, 77, 101, 259, 407, 707, 733, 1111, 2849, 3737, 5131, 7777, 8063, 26159, 27121, 41107, 56441, 74033, 189847, 287749, 298331, 518231, 814363, 2088317, 2739221, 5700541, 19174547, 30131431, 210920017]

約数ペア:

[(1, 210920017), (7, 30131431), (11, 19174547), (37, 5700541), (77, 2739221), (101, 2088317), (259, 814363), (407, 518231), (707, 298331), (733, 287749), (1111, 189847), (2849, 74033), (3737, 56441), (5131, 41107), (7777, 27121), (8063, 26159)]