25990263

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 43636320

約数和(自身を除く): 17646057

約数列:

[1, 3, 9, 13, 17, 39, 51, 73, 117, 153, 179, 219, 221, 537, 657, 663, 949, 1241, 1611, 1989, 2327, 2847, 3043, 3723, 6981, 8541, 9129, 11169, 13067, 16133, 20943, 27387, 39201, 39559, 48399, 117603, 118677, 145197, 169871, 222139, 356031, 509613, 666417, 1528839, 1999251, 2887807, 8663421, 25990263]

約数ペア:

[(1, 25990263), (3, 8663421), (9, 2887807), (13, 1999251), (17, 1528839), (39, 666417), (51, 509613), (73, 356031), (117, 222139), (153, 169871), (179, 145197), (219, 118677), (221, 117603), (537, 48399), (657, 39559), (663, 39201), (949, 27387), (1241, 20943), (1611, 16133), (1989, 13067), (2327, 11169), (2847, 9129), (3043, 8541), (3723, 6981)]