28112859

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 15225381

約数列:

[1, 3, 9, 27, 37, 107, 111, 263, 321, 333, 789, 963, 999, 2367, 2889, 3959, 7101, 9731, 11877, 28141, 29193, 35631, 84423, 87579, 106893, 253269, 262737, 759807, 1041217, 3123651, 9370953, 28112859]

約数ペア:

[(1, 28112859), (3, 9370953), (9, 3123651), (27, 1041217), (37, 759807), (107, 262737), (111, 253269), (263, 106893), (321, 87579), (333, 84423), (789, 35631), (963, 29193), (999, 28141), (2367, 11877), (2889, 9731), (3959, 7101)]