13291621

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 16658880

約数和(自身を除く): 3367259

約数列:

[1, 7, 19, 37, 73, 133, 259, 511, 703, 1369, 1387, 2701, 4921, 9583, 9709, 18907, 26011, 51319, 99937, 182077, 359233, 699559, 1898803, 13291621]

約数ペア:

[(1, 13291621), (7, 1898803), (19, 699559), (37, 359233), (73, 182077), (133, 99937), (259, 51319), (511, 26011), (703, 18907), (1369, 9709), (1387, 9583), (2701, 4921)]