21114394

素因数分解:

$2^1\times 7^4\times {\mathrm{4397}}^1$

素因数の和:4427

約数の個数: 20

約数和(自身を含む): 36956394

約数和(自身を除く): 15842000

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4397, 4802, 8794, 30779, 61558, 215453, 430906, 1508171, 3016342, 10557197, 21114394]

約数ペア:

[(1, 21114394), (2, 10557197), (7, 3016342), (14, 1508171), (49, 430906), (98, 215453), (343, 61558), (686, 30779), (2401, 8794), (4397, 4802)]