21784803

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5407}}^1$

素因数の和:5506

約数の個数: 16

約数和(自身を含む): 31150080

約数和(自身を除く): 9365277

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 5407, 16221, 91919, 275757, 427153, 1281459, 7261601, 21784803]

約数ペア:

[(1, 21784803), (3, 7261601), (17, 1281459), (51, 427153), (79, 275757), (237, 91919), (1343, 16221), (4029, 5407)]