21195438

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{321143}}^1$

素因数の和:321159

約数の個数: 16

約数和(自身を含む): 46244736

約数和(自身を除く): 25049298

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 321143, 642286, 963429, 1926858, 3532573, 7065146, 10597719, 21195438]

約数ペア:

[(1, 21195438), (2, 10597719), (3, 7065146), (6, 3532573), (11, 1926858), (22, 963429), (33, 642286), (66, 321143)]