821828

素因数分解:

$2^2\times 7^3\times {\mathrm{599}}^1$

素因数の和:624

約数の個数: 24

約数和(自身を含む): 1680000

約数和(自身を除く): 858172

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 599, 686, 1198, 1372, 2396, 4193, 8386, 16772, 29351, 58702, 117404, 205457, 410914, 821828]

約数ペア:

[(1, 821828), (2, 410914), (4, 205457), (7, 117404), (14, 58702), (28, 29351), (49, 16772), (98, 8386), (196, 4193), (343, 2396), (599, 1372), (686, 1198)]