21687862

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{21221}}^1$

素因数の和:21303

約数の個数: 16

約数和(自身を含む): 37690272

約数和(自身を除く): 16002410

約数列:

[1, 2, 7, 14, 73, 146, 511, 1022, 21221, 42442, 148547, 297094, 1549133, 3098266, 10843931, 21687862]

約数ペア:

[(1, 21687862), (2, 10843931), (7, 3098266), (14, 1549133), (73, 297094), (146, 148547), (511, 42442), (1022, 21221)]