21439327

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5479}}^1$

素因数の和:5542

約数の個数: 16

約数和(自身を含む): 27005440

約数和(自身を除く): 5566113

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 5479, 38353, 71227, 235597, 498589, 1649179, 3062761, 21439327]

約数ペア:

[(1, 21439327), (7, 3062761), (13, 1649179), (43, 498589), (91, 235597), (301, 71227), (559, 38353), (3913, 5479)]