127185723

素因数分解:

$3^2\times 7^2\times {\mathrm{288403}}^1$

素因数の和:288423

約数の個数: 18

約数和(自身を含む): 213707364

約数和(自身を除く): 86521641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 288403, 865209, 2018821, 2595627, 6056463, 14131747, 18169389, 42395241, 127185723]

約数ペア:

[(1, 127185723), (3, 42395241), (7, 18169389), (9, 14131747), (21, 6056463), (49, 2595627), (63, 2018821), (147, 865209), (441, 288403)]