21862533

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 38928384

約数和(自身を除く): 17065851

約数列:

[1, 3, 7, 11, 21, 31, 33, 43, 71, 77, 93, 129, 213, 217, 231, 301, 341, 473, 497, 651, 781, 903, 1023, 1333, 1419, 1491, 2201, 2343, 2387, 3053, 3311, 3999, 5467, 6603, 7161, 9159, 9331, 9933, 14663, 15407, 16401, 21371, 24211, 27993, 33583, 43989, 46221, 64113, 72633, 94643, 100749, 102641, 169477, 235081, 283929, 307923, 508431, 662501, 705243, 1041073, 1987503, 3123219, 7287511, 21862533]

約数ペア:

[(1, 21862533), (3, 7287511), (7, 3123219), (11, 1987503), (21, 1041073), (31, 705243), (33, 662501), (43, 508431), (71, 307923), (77, 283929), (93, 235081), (129, 169477), (213, 102641), (217, 100749), (231, 94643), (301, 72633), (341, 64113), (473, 46221), (497, 43989), (651, 33583), (781, 27993), (903, 24211), (1023, 21371), (1333, 16401), (1419, 15407), (1491, 14663), (2201, 9933), (2343, 9331), (2387, 9159), (3053, 7161), (3311, 6603), (3999, 5467)]