21909410

素因数分解:

$2^1\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{1871}}^1$

素因数の和:3049

約数の個数: 16

約数和(自身を含む): 39491712

約数和(自身を除く): 17582302

約数列:

[1, 2, 5, 10, 1171, 1871, 2342, 3742, 5855, 9355, 11710, 18710, 2190941, 4381882, 10954705, 21909410]

約数ペア:

[(1, 21909410), (2, 10954705), (5, 4381882), (10, 2190941), (1171, 18710), (1871, 11710), (2342, 9355), (3742, 5855)]