21000503489

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{863}}^1\times {\mathrm{56989}}^1$

素因数の和:57920

約数の個数: 16

約数和(自身を含む): 24422722560

約数和(自身を除く): 3422219071

約数列:

[1, 7, 61, 427, 863, 6041, 52643, 56989, 368501, 398923, 3476329, 24334303, 49181507, 344270549, 3000071927, 21000503489]

約数ペア:

[(1, 21000503489), (7, 3000071927), (61, 344270549), (427, 49181507), (863, 24334303), (6041, 3476329), (52643, 398923), (56989, 368501)]