18781731

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2213}}^1$

素因数の和:2283

約数の個数: 24

約数和(自身を含む): 29012256

約数和(自身を除く): 10230525

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 2213, 2829, 6639, 8487, 19917, 50899, 90733, 152697, 272199, 458091, 816597, 2086859, 6260577, 18781731]

約数ペア:

[(1, 18781731), (3, 6260577), (9, 2086859), (23, 816597), (41, 458091), (69, 272199), (123, 152697), (207, 90733), (369, 50899), (943, 19917), (2213, 8487), (2829, 6639)]