208077863

素因数分解:

$7^4\times {\mathrm{79}}^1\times {\mathrm{1097}}^1$

素因数の和:1204

約数の個数: 20

約数和(自身を含む): 246039840

約数和(自身を除く): 37961977

約数列:

[1, 7, 49, 79, 343, 553, 1097, 2401, 3871, 7679, 27097, 53753, 86663, 189679, 376271, 606641, 2633897, 4246487, 29725409, 208077863]

約数ペア:

[(1, 208077863), (7, 29725409), (49, 4246487), (79, 2633897), (343, 606641), (553, 376271), (1097, 189679), (2401, 86663), (3871, 53753), (7679, 27097)]