27210141

素因数分解:

$3^3\times 7^2\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 47551680

約数和(自身を除く): 20341539

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 131, 147, 157, 189, 393, 441, 471, 917, 1099, 1179, 1323, 1413, 2751, 3297, 3537, 4239, 6419, 7693, 8253, 9891, 19257, 20567, 23079, 24759, 29673, 57771, 61701, 69237, 143969, 173313, 185103, 207711, 431907, 555309, 1007783, 1295721, 3023349, 3887163, 9070047, 27210141]

約数ペア:

[(1, 27210141), (3, 9070047), (7, 3887163), (9, 3023349), (21, 1295721), (27, 1007783), (49, 555309), (63, 431907), (131, 207711), (147, 185103), (157, 173313), (189, 143969), (393, 69237), (441, 61701), (471, 57771), (917, 29673), (1099, 24759), (1179, 23079), (1323, 20567), (1413, 19257), (2751, 9891), (3297, 8253), (3537, 7693), (4239, 6419)]