19012774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2113}}^1$

素因数の和:2535

約数の個数: 16

約数和(自身を含む): 31202640

約数和(自身を除く): 12189866

約数列:

[1, 2, 11, 22, 409, 818, 2113, 4226, 4499, 8998, 23243, 46486, 864217, 1728434, 9506387, 19012774]

約数ペア:

[(1, 19012774), (2, 9506387), (11, 1728434), (22, 864217), (409, 46486), (818, 23243), (2113, 8998), (4226, 4499)]