21210807

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{4211}}^1$

素因数の和:4310

約数の個数: 16

約数和(自身を含む): 29922048

約数和(自身を除く): 8711241

約数列:

[1, 3, 23, 69, 73, 219, 1679, 4211, 5037, 12633, 96853, 290559, 307403, 922209, 7070269, 21210807]

約数ペア:

[(1, 21210807), (3, 7070269), (23, 922209), (69, 307403), (73, 290559), (219, 96853), (1679, 12633), (4211, 5037)]