21737429

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 26320320

約数和(自身を除く): 4582891

約数列:

[1, 7, 49, 59, 73, 103, 413, 511, 721, 2891, 3577, 4307, 5047, 6077, 7519, 30149, 42539, 52633, 211043, 297773, 368431, 443621, 3105347, 21737429]

約数ペア:

[(1, 21737429), (7, 3105347), (49, 443621), (59, 368431), (73, 297773), (103, 211043), (413, 52633), (511, 42539), (721, 30149), (2891, 7519), (3577, 6077), (4307, 5047)]