18779787

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12347}}^1$

素因数の和:12379

約数の個数: 18

約数和(自身を含む): 29375892

約数和(自身を除く): 10596105

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12347, 37041, 111123, 160511, 481533, 1444599, 2086643, 6259929, 18779787]

約数ペア:

[(1, 18779787), (3, 6259929), (9, 2086643), (13, 1444599), (39, 481533), (117, 160511), (169, 111123), (507, 37041), (1521, 12347)]