21252897

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1237}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 32445504

約数和(自身を除く): 11192607

約数列:

[1, 3, 9, 23, 69, 83, 207, 249, 747, 1237, 1909, 3711, 5727, 11133, 17181, 28451, 85353, 102671, 256059, 308013, 924039, 2361433, 7084299, 21252897]

約数ペア:

[(1, 21252897), (3, 7084299), (9, 2361433), (23, 924039), (69, 308013), (83, 256059), (207, 102671), (249, 85353), (747, 28451), (1237, 17181), (1909, 11133), (3711, 5727)]