18615639

素因数分解:

$3^1\times 7^3\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 29440000

約数和(自身を除く): 10824361

約数列:

[1, 3, 7, 21, 49, 79, 147, 229, 237, 343, 553, 687, 1029, 1603, 1659, 3871, 4809, 11221, 11613, 18091, 27097, 33663, 54273, 78547, 81291, 126637, 235641, 379911, 886459, 2659377, 6205213, 18615639]

約数ペア:

[(1, 18615639), (3, 6205213), (7, 2659377), (21, 886459), (49, 379911), (79, 235641), (147, 126637), (229, 81291), (237, 78547), (343, 54273), (553, 33663), (687, 27097), (1029, 18091), (1603, 11613), (1659, 11221), (3871, 4809)]