21009963

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{6053}}^1$

素因数の和:6158

約数の個数: 16

約数和(自身を含む): 30512160

約数和(自身を除く): 9502197

約数列:

[1, 3, 13, 39, 89, 267, 1157, 3471, 6053, 18159, 78689, 236067, 538717, 1616151, 7003321, 21009963]

約数ペア:

[(1, 21009963), (3, 7003321), (13, 1616151), (39, 538717), (89, 236067), (267, 78689), (1157, 18159), (3471, 6053)]