21719810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{310283}}^1$

素因数の和:310297

約数の個数: 16

約数和(自身を含む): 44680896

約数和(自身を除く): 22961086

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 310283, 620566, 1551415, 2171981, 3102830, 4343962, 10859905, 21719810]

約数ペア:

[(1, 21719810), (2, 10859905), (5, 4343962), (7, 3102830), (10, 2171981), (14, 1551415), (35, 620566), (70, 310283)]