426687021

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{78623}}^1$

素因数の和:78702

約数の個数: 20

約数和(自身を含む): 646918272

約数和(自身を除く): 220231251

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 78623, 235869, 707607, 2122821, 5267741, 6368463, 15803223, 47409669, 142229007, 426687021]

約数ペア:

[(1, 426687021), (3, 142229007), (9, 47409669), (27, 15803223), (67, 6368463), (81, 5267741), (201, 2122821), (603, 707607), (1809, 235869), (5427, 78623)]