21167019916

素因数分解:

$2^2\times 7^1\times {\mathrm{1049}}^1\times {\mathrm{720653}}^1$

素因数の和:721713

約数の個数: 24

約数和(自身を含む): 42374455200

約数和(自身を除く): 21207435284

約数列:

[1, 2, 4, 7, 14, 28, 1049, 2098, 4196, 7343, 14686, 29372, 720653, 1441306, 2882612, 5044571, 10089142, 20178284, 755964997, 1511929994, 3023859988, 5291754979, 10583509958, 21167019916]

約数ペア:

[(1, 21167019916), (2, 10583509958), (4, 5291754979), (7, 3023859988), (14, 1511929994), (28, 755964997), (1049, 20178284), (2098, 10089142), (4196, 5044571), (7343, 2882612), (14686, 1441306), (29372, 720653)]