21002609663

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{11584451}}^1$

素因数の和:11584502

約数の個数: 12

約数和(自身を含む): 25091923032

約数和(自身を除く): 4089313369

約数列:

[1, 7, 37, 49, 259, 1813, 11584451, 81091157, 428624687, 567638099, 3000372809, 21002609663]

約数ペア:

[(1, 21002609663), (7, 3000372809), (37, 567638099), (49, 428624687), (259, 81091157), (1813, 11584451)]