81242187

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{6967}}^1$

素因数の和:7019

約数の個数: 24

約数和(自身を含む): 122413824

約数和(自身を除く): 41171637

約数列:

[1, 3, 13, 23, 39, 69, 169, 299, 507, 897, 3887, 6967, 11661, 20901, 90571, 160241, 271713, 480723, 1177423, 2083133, 3532269, 6249399, 27080729, 81242187]

約数ペア:

[(1, 81242187), (3, 27080729), (13, 6249399), (23, 3532269), (39, 2083133), (69, 1177423), (169, 480723), (299, 271713), (507, 160241), (897, 90571), (3887, 20901), (6967, 11661)]