21307569

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{2381}}^1$

素因数の和:2560

約数の個数: 16

約数和(自身を含む): 30108480

約数和(自身を除く): 8800911

約数列:

[1, 3, 19, 57, 157, 471, 2381, 2983, 7143, 8949, 45239, 135717, 373817, 1121451, 7102523, 21307569]

約数ペア:

[(1, 21307569), (3, 7102523), (19, 1121451), (57, 373817), (157, 135717), (471, 45239), (2381, 8949), (2983, 7143)]