18742269

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5281}}^1$

素因数の和:5317

約数の個数: 24

約数和(自身を含む): 30931392

約数和(自身を除く): 12189123

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5281, 15843, 36967, 68653, 110901, 205959, 480571, 892489, 1441713, 2677467, 6247423, 18742269]

約数ペア:

[(1, 18742269), (3, 6247423), (7, 2677467), (13, 1441713), (21, 892489), (39, 480571), (91, 205959), (169, 110901), (273, 68653), (507, 36967), (1183, 15843), (3549, 5281)]