21305091

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{2141}}^1$

素因数の和:2282

約数の個数: 16

約数和(自身を含む): 29611008

約数和(自身を除く): 8305917

約数列:

[1, 3, 31, 93, 107, 321, 2141, 3317, 6423, 9951, 66371, 199113, 229087, 687261, 7101697, 21305091]

約数ペア:

[(1, 21305091), (3, 7101697), (31, 687261), (93, 229087), (107, 199113), (321, 66371), (2141, 9951), (3317, 6423)]