20931998

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{7793}}^1$

素因数の和:7891

約数の個数: 16

約数和(自身を含む): 33670080

約数和(自身を除く): 12738082

約数列:

[1, 2, 17, 34, 79, 158, 1343, 2686, 7793, 15586, 132481, 264962, 615647, 1231294, 10465999, 20931998]

約数ペア:

[(1, 20931998), (2, 10465999), (17, 1231294), (34, 615647), (79, 264962), (158, 132481), (1343, 15586), (2686, 7793)]