21440518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8941}}^1$

素因数の和:9063

約数の個数: 16

約数和(自身を含む): 35410320

約数和(自身を除く): 13969802

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 8941, 17882, 98351, 196702, 974569, 1949138, 10720259, 21440518]

約数ペア:

[(1, 21440518), (2, 10720259), (11, 1949138), (22, 974569), (109, 196702), (218, 98351), (1199, 17882), (2398, 8941)]