21800979

素因数分解:

$3^2\times {\mathrm{509}}^1\times {\mathrm{4759}}^1$

素因数の和:5274

約数の個数: 12

約数和(自身を含む): 31558800

約数和(自身を除く): 9757821

約数列:

[1, 3, 9, 509, 1527, 4581, 4759, 14277, 42831, 2422331, 7266993, 21800979]

約数ペア:

[(1, 21800979), (3, 7266993), (9, 2422331), (509, 42831), (1527, 14277), (4581, 4759)]