78717987

素因数分解:

$3^4\times {\mathrm{467}}^1\times {\mathrm{2081}}^1$

素因数の和:2560

約数の個数: 20

約数和(自身を含む): 117899496

約数和(自身を除く): 39181509

約数列:

[1, 3, 9, 27, 81, 467, 1401, 2081, 4203, 6243, 12609, 18729, 37827, 56187, 168561, 971827, 2915481, 8746443, 26239329, 78717987]

約数ペア:

[(1, 78717987), (3, 26239329), (9, 8746443), (27, 2915481), (81, 971827), (467, 168561), (1401, 56187), (2081, 37827), (4203, 18729), (6243, 12609)]