28004193

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{8387}}^1$

素因数の和:8453

約数の個数: 24

約数和(自身を含む): 47107008

約数和(自身を除く): 19102815

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 8387, 25161, 58709, 75483, 176127, 444511, 528381, 1333533, 3111577, 4000599, 9334731, 28004193]

約数ペア:

[(1, 28004193), (3, 9334731), (7, 4000599), (9, 3111577), (21, 1333533), (53, 528381), (63, 444511), (159, 176127), (371, 75483), (477, 58709), (1113, 25161), (3339, 8387)]