261566289

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{2459}}^1$

素因数の和:2741

約数の個数: 24

約数和(自身を含む): 386830080

約数和(自身を除く): 125263791

約数列:

[1, 3, 9, 53, 159, 223, 477, 669, 2007, 2459, 7377, 11819, 22131, 35457, 106371, 130327, 390981, 548357, 1172943, 1645071, 4935213, 29062921, 87188763, 261566289]

約数ペア:

[(1, 261566289), (3, 87188763), (9, 29062921), (53, 4935213), (159, 1645071), (223, 1172943), (477, 548357), (669, 390981), (2007, 130327), (2459, 106371), (7377, 35457), (11819, 22131)]