25978407

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2213}}^1$

素因数の和:2279

約数の個数: 32

約数和(自身を含む): 43642368

約数和(自身を除く): 17663961

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 2213, 3913, 6639, 11739, 15491, 28769, 46473, 86307, 95159, 201383, 285477, 604149, 666113, 1237067, 1998339, 3711201, 8659469, 25978407]

約数ペア:

[(1, 25978407), (3, 8659469), (7, 3711201), (13, 1998339), (21, 1237067), (39, 666113), (43, 604149), (91, 285477), (129, 201383), (273, 95159), (301, 86307), (559, 46473), (903, 28769), (1677, 15491), (2213, 11739), (3913, 6639)]