21540926

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42571}}^1$

素因数の和:42607

約数の個数: 16

約数和(自身を含む): 36782208

約数和(自身を除く): 15241282

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42571, 85142, 468281, 936562, 979133, 1958266, 10770463, 21540926]

約数ペア:

[(1, 21540926), (2, 10770463), (11, 1958266), (22, 979133), (23, 936562), (46, 468281), (253, 85142), (506, 42571)]