21551925

素因数分解:

$3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{2543}}^1$

素因数の和:2669

約数の個数: 24

約数和(自身を含む): 35961984

約数和(自身を除く): 14410059

約数列:

[1, 3, 5, 15, 25, 75, 113, 339, 565, 1695, 2543, 2825, 7629, 8475, 12715, 38145, 63575, 190725, 287359, 862077, 1436795, 4310385, 7183975, 21551925]

約数ペア:

[(1, 21551925), (3, 7183975), (5, 4310385), (15, 1436795), (25, 862077), (75, 287359), (113, 190725), (339, 63575), (565, 38145), (1695, 12715), (2543, 8475), (2825, 7629)]