639848198703

素因数分解:

$3^1\times 7^1\times {\mathrm{2143}}^1\times {\mathrm{14217901}}^1$

素因数の和:14220054

約数の個数: 16

約数和(自身を含む): 975461820416

約数和(自身を除く): 335613621713

約数列:

[1, 3, 7, 21, 2143, 6429, 15001, 45003, 14217901, 42653703, 99525307, 298575921, 30468961843, 91406885529, 213282732901, 639848198703]

約数ペア:

[(1, 639848198703), (3, 213282732901), (7, 91406885529), (21, 30468961843), (2143, 298575921), (6429, 99525307), (15001, 42653703), (45003, 14217901)]