21318286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42131}}^1$

素因数の和:42167

約数の個数: 16

約数和(自身を含む): 36402048

約数和(自身を除く): 15083762

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42131, 84262, 463441, 926882, 969013, 1938026, 10659143, 21318286]

約数ペア:

[(1, 21318286), (2, 10659143), (11, 1938026), (22, 969013), (23, 926882), (46, 463441), (253, 84262), (506, 42131)]