21918818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{5711}}^1$

素因数の和:5833

約数の個数: 16

約数和(自身を含む): 34957440

約数和(自身を除く): 13038622

約数列:

[1, 2, 19, 38, 101, 202, 1919, 3838, 5711, 11422, 108509, 217018, 576811, 1153622, 10959409, 21918818]

約数ペア:

[(1, 21918818), (2, 10959409), (19, 1153622), (38, 576811), (101, 217018), (202, 108509), (1919, 11422), (3838, 5711)]