12864987

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{2237}}^1$

素因数の和:2320

約数の個数: 20

約数和(自身を含む): 19497456

約数和(自身を除く): 6632469

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 2237, 5751, 6711, 20133, 60399, 158827, 181197, 476481, 1429443, 4288329, 12864987]

約数ペア:

[(1, 12864987), (3, 4288329), (9, 1429443), (27, 476481), (71, 181197), (81, 158827), (213, 60399), (639, 20133), (1917, 6711), (2237, 5751)]