21650222

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42787}}^1$

素因数の和:42823

約数の個数: 16

約数和(自身を含む): 36968832

約数和(自身を除く): 15318610

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42787, 85574, 470657, 941314, 984101, 1968202, 10825111, 21650222]

約数ペア:

[(1, 21650222), (2, 10825111), (11, 1968202), (22, 984101), (23, 941314), (46, 470657), (253, 85574), (506, 42787)]