21579103

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 30041280

約数和(自身を除く): 8462177

約数列:

[1, 7, 13, 17, 29, 37, 91, 119, 169, 203, 221, 259, 377, 481, 493, 629, 1073, 1183, 1547, 2639, 2873, 3367, 3451, 4403, 4901, 6253, 6409, 7511, 8177, 13949, 18241, 20111, 34307, 43771, 44863, 57239, 83317, 97643, 106301, 127687, 181337, 237133, 583219, 744107, 1269359, 1659931, 3082729, 21579103]

約数ペア:

[(1, 21579103), (7, 3082729), (13, 1659931), (17, 1269359), (29, 744107), (37, 583219), (91, 237133), (119, 181337), (169, 127687), (203, 106301), (221, 97643), (259, 83317), (377, 57239), (481, 44863), (493, 43771), (629, 34307), (1073, 20111), (1183, 18241), (1547, 13949), (2639, 8177), (2873, 7511), (3367, 6409), (3451, 6253), (4403, 4901)]