81904329

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{53849}}^1$

素因数の和:53881

約数の個数: 18

約数和(自身を含む): 128109150

約数和(自身を除く): 46204821

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 53849, 161547, 484641, 700037, 2100111, 6300333, 9100481, 27301443, 81904329]

約数ペア:

[(1, 81904329), (3, 27301443), (9, 9100481), (13, 6300333), (39, 2100111), (117, 700037), (169, 484641), (507, 161547), (1521, 53849)]