21025179

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3119}}^1$

素因数の和:3239

約数の個数: 24

約数和(自身を含む): 35043840

約数和(自身を除く): 14018661

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 3119, 6741, 9357, 21833, 28071, 65499, 196497, 333733, 1001199, 2336131, 3003597, 7008393, 21025179]

約数ペア:

[(1, 21025179), (3, 7008393), (7, 3003597), (9, 2336131), (21, 1001199), (63, 333733), (107, 196497), (321, 65499), (749, 28071), (963, 21833), (2247, 9357), (3119, 6741)]