18417789

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12109}}^1$

素因数の和:12141

約数の個数: 18

約数和(自身を含む): 28809690

約数和(自身を除く): 10391901

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12109, 36327, 108981, 157417, 472251, 1416753, 2046421, 6139263, 18417789]

約数ペア:

[(1, 18417789), (3, 6139263), (9, 2046421), (13, 1416753), (39, 472251), (117, 157417), (169, 108981), (507, 36327), (1521, 12109)]