205989777

素因数分解:

$3^3\times 7^2\times {\mathrm{155699}}^1$

素因数の和:155722

約数の個数: 24

約数和(自身を含む): 354996000

約数和(自身を除く): 149006223

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 155699, 467097, 1089893, 1401291, 3269679, 4203873, 7629251, 9809037, 22887753, 29427111, 68663259, 205989777]

約数ペア:

[(1, 205989777), (3, 68663259), (7, 29427111), (9, 22887753), (21, 9809037), (27, 7629251), (49, 4203873), (63, 3269679), (147, 1401291), (189, 1089893), (441, 467097), (1323, 155699)]