21704571

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4993}}^1$

素因数の和:5032

約数の個数: 32

約数和(自身を含む): 38353920

約数和(自身を除く): 16649349

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4993, 14979, 34951, 44937, 104853, 114839, 134811, 314559, 344517, 803873, 943677, 1033551, 2411619, 3100653, 7234857, 21704571]

約数ペア:

[(1, 21704571), (3, 7234857), (7, 3100653), (9, 2411619), (21, 1033551), (23, 943677), (27, 803873), (63, 344517), (69, 314559), (161, 134811), (189, 114839), (207, 104853), (483, 44937), (621, 34951), (1449, 14979), (4347, 4993)]