28697391

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{653}}^1$

素因数の和:935

約数の個数: 24

約数和(自身を含む): 43870320

約数和(自身を除く): 15172929

約数列:

[1, 3, 9, 19, 57, 171, 257, 653, 771, 1959, 2313, 4883, 5877, 12407, 14649, 37221, 43947, 111663, 167821, 503463, 1510389, 3188599, 9565797, 28697391]

約数ペア:

[(1, 28697391), (3, 9565797), (9, 3188599), (19, 1510389), (57, 503463), (171, 167821), (257, 111663), (653, 43947), (771, 37221), (1959, 14649), (2313, 12407), (4883, 5877)]