17720217

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{599}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 27144000

約数和(自身を除く): 9423783

約数列:

[1, 3, 9, 19, 57, 171, 173, 519, 599, 1557, 1797, 3287, 5391, 9861, 11381, 29583, 34143, 102429, 103627, 310881, 932643, 1968913, 5906739, 17720217]

約数ペア:

[(1, 17720217), (3, 5906739), (9, 1968913), (19, 932643), (57, 310881), (171, 103627), (173, 102429), (519, 34143), (599, 29583), (1557, 11381), (1797, 9861), (3287, 5391)]