19577619

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12721}}^1$

素因数の和:12752

約数の個数: 20

約数和(自身を含む): 30787240

約数和(自身を除く): 11209621

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12721, 38163, 114489, 241699, 343467, 725097, 1030401, 2175291, 6525873, 19577619]

約数ペア:

[(1, 19577619), (3, 6525873), (9, 2175291), (19, 1030401), (27, 725097), (57, 343467), (81, 241699), (171, 114489), (513, 38163), (1539, 12721)]