19923706

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21061}}^1$

素因数の和:21117

約数の個数: 16

約数和(自身を含む): 33362208

約数和(自身を除く): 13438502

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 21061, 42122, 231671, 463342, 905623, 1811246, 9961853, 19923706]

約数ペア:

[(1, 19923706), (2, 9961853), (11, 1811246), (22, 905623), (43, 463342), (86, 231671), (473, 42122), (946, 21061)]