12786579

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{12143}}^1$

素因数の和:12168

約数の個数: 20

約数和(自身を含む): 20571936

約数和(自身を除く): 7785357

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 12143, 36429, 109287, 157859, 327861, 473577, 983583, 1420731, 4262193, 12786579]

約数ペア:

[(1, 12786579), (3, 4262193), (9, 1420731), (13, 983583), (27, 473577), (39, 327861), (81, 157859), (117, 109287), (351, 36429), (1053, 12143)]