199912581

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{25561}}^1$

素因数の和:25657

約数の個数: 24

約数和(自身を含む): 319013760

約数和(自身を除く): 119101179

約数列:

[1, 3, 9, 11, 33, 79, 99, 237, 711, 869, 2607, 7821, 25561, 76683, 230049, 281171, 843513, 2019319, 2530539, 6057957, 18173871, 22212509, 66637527, 199912581]

約数ペア:

[(1, 199912581), (3, 66637527), (9, 22212509), (11, 18173871), (33, 6057957), (79, 2530539), (99, 2019319), (237, 843513), (711, 281171), (869, 230049), (2607, 76683), (7821, 25561)]