215686521

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{2143}}^1$

素因数の和:2413

約数の個数: 24

約数和(自身を含む): 319078656

約数和(自身を除く): 103392135

約数列:

[1, 3, 9, 53, 159, 211, 477, 633, 1899, 2143, 6429, 11183, 19287, 33549, 100647, 113579, 340737, 452173, 1022211, 1356519, 4069557, 23965169, 71895507, 215686521]

約数ペア:

[(1, 215686521), (3, 71895507), (9, 23965169), (53, 4069557), (159, 1356519), (211, 1022211), (477, 452173), (633, 340737), (1899, 113579), (2143, 100647), (6429, 33549), (11183, 19287)]