139185621

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{90439}}^1$

素因数の和:90470

約数の個数: 20

約数和(自身を含む): 218864800

約数和(自身を除く): 79679179

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 90439, 271317, 813951, 1718341, 2441853, 5155023, 7325559, 15465069, 46395207, 139185621]

約数ペア:

[(1, 139185621), (3, 46395207), (9, 15465069), (19, 7325559), (27, 5155023), (57, 2441853), (81, 1718341), (171, 813951), (513, 271317), (1539, 90439)]