21690298

素因数分解:

$2^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{5717}}^1$

素因数の和:5997

約数の個数: 16

約数和(自身を含む): 37327104

約数和(自身を除く): 15636806

約数列:

[1, 2, 7, 14, 271, 542, 1897, 3794, 5717, 11434, 40019, 80038, 1549307, 3098614, 10845149, 21690298]

約数ペア:

[(1, 21690298), (2, 10845149), (7, 3098614), (14, 1549307), (271, 80038), (542, 40019), (1897, 11434), (3794, 5717)]