28914963

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 22178541

約数列:

[1, 3, 7, 11, 21, 33, 41, 43, 71, 77, 123, 129, 213, 231, 287, 301, 451, 473, 497, 781, 861, 903, 1353, 1419, 1491, 1763, 2343, 2911, 3053, 3157, 3311, 5289, 5467, 8733, 9159, 9471, 9933, 12341, 16401, 19393, 20377, 21371, 32021, 33583, 37023, 58179, 61131, 64113, 96063, 100749, 125173, 135751, 224147, 235081, 375519, 407253, 672441, 705243, 876211, 1376903, 2628633, 4130709, 9638321, 28914963]

約数ペア:

[(1, 28914963), (3, 9638321), (7, 4130709), (11, 2628633), (21, 1376903), (33, 876211), (41, 705243), (43, 672441), (71, 407253), (77, 375519), (123, 235081), (129, 224147), (213, 135751), (231, 125173), (287, 100749), (301, 96063), (451, 64113), (473, 61131), (497, 58179), (781, 37023), (861, 33583), (903, 32021), (1353, 21371), (1419, 20377), (1491, 19393), (1763, 16401), (2343, 12341), (2911, 9933), (3053, 9471), (3157, 9159), (3311, 8733), (5289, 5467)]