66981897

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{613}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 106983360

約数和(自身を除く): 40001463

約数列:

[1, 3, 9, 19, 27, 57, 71, 81, 171, 213, 513, 613, 639, 1349, 1539, 1839, 1917, 4047, 5517, 5751, 11647, 12141, 16551, 34941, 36423, 43523, 49653, 104823, 109269, 130569, 314469, 391707, 826937, 943407, 1175121, 2480811, 3525363, 7442433, 22327299, 66981897]

約数ペア:

[(1, 66981897), (3, 22327299), (9, 7442433), (19, 3525363), (27, 2480811), (57, 1175121), (71, 943407), (81, 826937), (171, 391707), (213, 314469), (513, 130569), (613, 109269), (639, 104823), (1349, 49653), (1539, 43523), (1839, 36423), (1917, 34941), (4047, 16551), (5517, 12141), (5751, 11647)]