21573167

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{557}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 26998272

約数和(自身を除く): 5425105

約数列:

[1, 7, 11, 77, 503, 557, 3521, 3899, 5533, 6127, 38731, 42889, 280171, 1961197, 3081881, 21573167]

約数ペア:

[(1, 21573167), (7, 3081881), (11, 1961197), (77, 280171), (503, 42889), (557, 38731), (3521, 6127), (3899, 5533)]