209580399

素因数分解:

$3^3\times 7^2\times {\mathrm{157}}^1\times {\mathrm{1009}}^1$

素因数の和:1189

約数の個数: 48

約数和(自身を含む): 363842400

約数和(自身を除く): 154262001

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 157, 189, 441, 471, 1009, 1099, 1323, 1413, 3027, 3297, 4239, 7063, 7693, 9081, 9891, 21189, 23079, 27243, 29673, 49441, 63567, 69237, 148323, 158413, 190701, 207711, 444969, 475239, 1108891, 1334907, 1425717, 3326673, 4277151, 7762237, 9980019, 23286711, 29940057, 69860133, 209580399]

約数ペア:

[(1, 209580399), (3, 69860133), (7, 29940057), (9, 23286711), (21, 9980019), (27, 7762237), (49, 4277151), (63, 3326673), (147, 1425717), (157, 1334907), (189, 1108891), (441, 475239), (471, 444969), (1009, 207711), (1099, 190701), (1323, 158413), (1413, 148323), (3027, 69237), (3297, 63567), (4239, 49441), (7063, 29673), (7693, 27243), (9081, 23079), (9891, 21189)]