2021857481

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{738713}}^1$

素因数の和:738760

約数の個数: 16

約数和(自身を含む): 2552995584

約数和(自身を除く): 531138103

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 738713, 5170991, 12558121, 16990399, 87906847, 118932793, 288836783, 2021857481]

約数ペア:

[(1, 2021857481), (7, 288836783), (17, 118932793), (23, 87906847), (119, 16990399), (161, 12558121), (391, 5170991), (2737, 738713)]