21034040

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{761}}^1$

素因数の和:1463

約数の個数: 32

約数和(自身を含む): 47457360

約数和(自身を除く): 26423320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 761, 1382, 1522, 2764, 3044, 3455, 3805, 5528, 6088, 6910, 7610, 13820, 15220, 27640, 30440, 525851, 1051702, 2103404, 2629255, 4206808, 5258510, 10517020, 21034040]

約数ペア:

[(1, 21034040), (2, 10517020), (4, 5258510), (5, 4206808), (8, 2629255), (10, 2103404), (20, 1051702), (40, 525851), (691, 30440), (761, 27640), (1382, 15220), (1522, 13820), (2764, 7610), (3044, 6910), (3455, 6088), (3805, 5528)]