12912809

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{491}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 16916928

約数和(自身を除く): 4004119

約数列:

[1, 7, 13, 17, 91, 119, 221, 289, 491, 1547, 2023, 3437, 3757, 6383, 8347, 26299, 44681, 58429, 108511, 141899, 759577, 993293, 1844687, 12912809]

約数ペア:

[(1, 12912809), (7, 1844687), (13, 993293), (17, 759577), (91, 141899), (119, 108511), (221, 58429), (289, 44681), (491, 26299), (1547, 8347), (2023, 6383), (3437, 3757)]