21243489

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{6217}}^1$

素因数の和:6304

約数の個数: 16

約数和(自身を含む): 30443328

約数和(自身を除く): 9199839

約数列:

[1, 3, 17, 51, 67, 201, 1139, 3417, 6217, 18651, 105689, 317067, 416539, 1249617, 7081163, 21243489]

約数ペア:

[(1, 21243489), (3, 7081163), (17, 1249617), (51, 416539), (67, 317067), (201, 105689), (1139, 18651), (3417, 6217)]