21620137

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4759}}^1$

素因数の和:4836

約数の個数: 16

約数和(自身を含む): 27417600

約数和(自身を除く): 5797463

約数列:

[1, 7, 11, 59, 77, 413, 649, 4543, 4759, 33313, 52349, 280781, 366443, 1965467, 3088591, 21620137]

約数ペア:

[(1, 21620137), (7, 3088591), (11, 1965467), (59, 366443), (77, 280781), (413, 52349), (649, 33313), (4543, 4759)]