21037371

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1\times {\mathrm{349}}^1$

素因数の和:706

約数の個数: 16

約数和(自身を含む): 28627200

約数和(自身を除く): 7589829

約数列:

[1, 3, 71, 213, 283, 349, 849, 1047, 20093, 24779, 60279, 74337, 98767, 296301, 7012457, 21037371]

約数ペア:

[(1, 21037371), (3, 7012457), (71, 296301), (213, 98767), (283, 74337), (349, 60279), (849, 24779), (1047, 20093)]