28242513

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{26821}}^1$

素因数の和:26846

約数の個数: 20

約数和(自身を含む): 45436468

約数和(自身を除く): 17193955

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 26821, 80463, 241389, 348673, 724167, 1046019, 2172501, 3138057, 9414171, 28242513]

約数ペア:

[(1, 28242513), (3, 9414171), (9, 3138057), (13, 2172501), (27, 1046019), (39, 724167), (81, 348673), (117, 241389), (351, 80463), (1053, 26821)]