18946863

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2417}}^1$

素因数の和:2503

約数の個数: 24

約数和(自身を含む): 29925168

約数和(自身を除く): 10978305

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2417, 2613, 7251, 7839, 21753, 31421, 94263, 161939, 282789, 485817, 1457451, 2105207, 6315621, 18946863]

約数ペア:

[(1, 18946863), (3, 6315621), (9, 2105207), (13, 1457451), (39, 485817), (67, 282789), (117, 161939), (201, 94263), (603, 31421), (871, 21753), (2417, 7839), (2613, 7251)]