21091483

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{487}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 25297920

約数和(自身を除く): 4206437

約数列:

[1, 7, 23, 161, 269, 487, 1883, 3409, 6187, 11201, 43309, 78407, 131003, 917021, 3013069, 21091483]

約数ペア:

[(1, 21091483), (7, 3013069), (23, 917021), (161, 131003), (269, 78407), (487, 43309), (1883, 11201), (3409, 6187)]