21305055

素因数分解:

$3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{4567}}^1$

素因数の和:4886

約数の個数: 16

約数和(自身を含む): 34205184

約数和(自身を除く): 12900129

約数列:

[1, 3, 5, 15, 311, 933, 1555, 4567, 4665, 13701, 22835, 68505, 1420337, 4261011, 7101685, 21305055]

約数ペア:

[(1, 21305055), (3, 7101685), (5, 4261011), (15, 1420337), (311, 68505), (933, 22835), (1555, 13701), (4567, 4665)]