21000337442

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78948637}}^1$

素因数の和:78948665

約数の個数: 16

約数和(自身を含む): 37895346240

約数和(自身を除く): 16895008798

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 78948637, 157897274, 552640459, 1105280918, 1500024103, 3000048206, 10500168721, 21000337442]

約数ペア:

[(1, 21000337442), (2, 10500168721), (7, 3000048206), (14, 1500024103), (19, 1105280918), (38, 552640459), (133, 157897274), (266, 78948637)]