212840739

素因数分解:

$3^2\times {\mathrm{53}}^2\times {\mathrm{8419}}^1$

素因数の和:8531

約数の個数: 18

約数和(自身を含む): 313383980

約数和(自身を除く): 100543241

約数列:

[1, 3, 9, 53, 159, 477, 2809, 8419, 8427, 25257, 25281, 75771, 446207, 1338621, 4015863, 23648971, 70946913, 212840739]

約数ペア:

[(1, 212840739), (3, 70946913), (9, 23648971), (53, 4015863), (159, 1338621), (477, 446207), (2809, 75771), (8419, 25281), (8427, 25257)]