18520436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{420919}}^1$

素因数の和:420934

約数の個数: 12

約数和(自身を含む): 35357280

約数和(自身を除く): 16836844

約数列:

[1, 2, 4, 11, 22, 44, 420919, 841838, 1683676, 4630109, 9260218, 18520436]

約数ペア:

[(1, 18520436), (2, 9260218), (4, 4630109), (11, 1683676), (22, 841838), (44, 420919)]