21561166

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42611}}^1$

素因数の和:42647

約数の個数: 16

約数和(自身を含む): 36816768

約数和(自身を除く): 15255602

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42611, 85222, 468721, 937442, 980053, 1960106, 10780583, 21561166]

約数ペア:

[(1, 21561166), (2, 10780583), (11, 1960106), (22, 980053), (23, 937442), (46, 468721), (253, 85222), (506, 42611)]