17811493

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{853}}^1$

素因数の和:1036

約数の個数: 16

約数和(自身を含む): 21589120

約数和(自身を除く): 3777627

約数列:

[1, 7, 19, 133, 157, 853, 1099, 2983, 5971, 16207, 20881, 113449, 133921, 937447, 2544499, 17811493]

約数ペア:

[(1, 17811493), (7, 2544499), (19, 937447), (133, 133921), (157, 113449), (853, 20881), (1099, 16207), (2983, 5971)]