20276739

素因数分解:

$3^2\times 7^2\times {\mathrm{45979}}^1$

素因数の和:45999

約数の個数: 18

約数和(自身を含む): 34071180

約数和(自身を除く): 13794441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45979, 137937, 321853, 413811, 965559, 2252971, 2896677, 6758913, 20276739]

約数ペア:

[(1, 20276739), (3, 6758913), (7, 2896677), (9, 2252971), (21, 965559), (49, 413811), (63, 321853), (147, 137937), (441, 45979)]