20997466

素因数分解:

$2^1\times 7^1\times {\mathrm{107}}^2\times {\mathrm{131}}^1$

素因数の和:354

約数の個数: 24

約数和(自身を含む): 36612576

約数和(自身を除く): 15615110

約数列:

[1, 2, 7, 14, 107, 131, 214, 262, 749, 917, 1498, 1834, 11449, 14017, 22898, 28034, 80143, 98119, 160286, 196238, 1499819, 2999638, 10498733, 20997466]

約数ペア:

[(1, 20997466), (2, 10498733), (7, 2999638), (14, 1499819), (107, 196238), (131, 160286), (214, 98119), (262, 80143), (749, 28034), (917, 22898), (1498, 14017), (1834, 11449)]