21003021

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2017}}^1$

素因数の和:2125

約数の個数: 24

約数和(自身を含む): 33054840

約数和(自身を除く): 12051819

約数列:

[1, 3, 9, 13, 39, 89, 117, 267, 801, 1157, 2017, 3471, 6051, 10413, 18153, 26221, 78663, 179513, 235989, 538539, 1615617, 2333669, 7001007, 21003021]

約数ペア:

[(1, 21003021), (3, 7001007), (9, 2333669), (13, 1615617), (39, 538539), (89, 235989), (117, 179513), (267, 78663), (801, 26221), (1157, 18153), (2017, 10413), (3471, 6051)]