280401021

素因数分解:

$3^4\times {\mathrm{311}}^1\times {\mathrm{11131}}^1$

素因数の和:11454

約数の個数: 20

約数和(自身を含む): 420255264

約数和(自身を除く): 139854243

約数列:

[1, 3, 9, 27, 81, 311, 933, 2799, 8397, 11131, 25191, 33393, 100179, 300537, 901611, 3461741, 10385223, 31155669, 93467007, 280401021]

約数ペア:

[(1, 280401021), (3, 93467007), (9, 31155669), (27, 10385223), (81, 3461741), (311, 901611), (933, 300537), (2799, 100179), (8397, 33393), (11131, 25191)]