20151229

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1471}}^1$

素因数の和:1600

約数の個数: 16

約数和(自身を含む): 24494080

約数和(自身を除く): 4342851

約数列:

[1, 7, 19, 103, 133, 721, 1471, 1957, 10297, 13699, 27949, 151513, 195643, 1060591, 2878747, 20151229]

約数ペア:

[(1, 20151229), (7, 2878747), (19, 1060591), (103, 195643), (133, 151513), (721, 27949), (1471, 13699), (1957, 10297)]