20995918

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{26849}}^1$

素因数の和:26891

約数の個数: 16

約数和(自身を含む): 34797600

約数和(自身を除く): 13801682

約数列:

[1, 2, 17, 23, 34, 46, 391, 782, 26849, 53698, 456433, 617527, 912866, 1235054, 10497959, 20995918]

約数ペア:

[(1, 20995918), (2, 10497959), (17, 1235054), (23, 912866), (34, 617527), (46, 456433), (391, 53698), (782, 26849)]