21559083

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{503}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 35675136

約数和(自身を除く): 14116053

約数列:

[1, 3, 7, 13, 21, 39, 91, 157, 273, 471, 503, 1099, 1509, 2041, 3297, 3521, 6123, 6539, 10563, 14287, 19617, 42861, 45773, 78971, 137319, 236913, 552797, 1026623, 1658391, 3079869, 7186361, 21559083]

約数ペア:

[(1, 21559083), (3, 7186361), (7, 3079869), (13, 1658391), (21, 1026623), (39, 552797), (91, 236913), (157, 137319), (273, 78971), (471, 45773), (503, 42861), (1099, 19617), (1509, 14287), (2041, 10563), (3297, 6539), (3521, 6123)]