16742781

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 80

約数和(自身を含む): 30666240

約数和(自身を除く): 13923459

約数列:

[1, 3, 9, 11, 19, 23, 27, 33, 43, 57, 69, 81, 99, 129, 171, 207, 209, 253, 297, 387, 437, 473, 513, 621, 627, 759, 817, 891, 989, 1161, 1311, 1419, 1539, 1863, 1881, 2277, 2451, 2967, 3483, 3933, 4257, 4807, 5643, 6831, 7353, 8901, 8987, 10879, 11799, 12771, 14421, 16929, 18791, 20493, 22059, 26703, 26961, 32637, 35397, 38313, 43263, 56373, 66177, 80109, 80883, 97911, 129789, 169119, 206701, 242649, 293733, 389367, 507357, 620103, 727947, 881199, 1522071, 1860309, 5580927, 16742781]

約数ペア:

[(1, 16742781), (3, 5580927), (9, 1860309), (11, 1522071), (19, 881199), (23, 727947), (27, 620103), (33, 507357), (43, 389367), (57, 293733), (69, 242649), (81, 206701), (99, 169119), (129, 129789), (171, 97911), (207, 80883), (209, 80109), (253, 66177), (297, 56373), (387, 43263), (437, 38313), (473, 35397), (513, 32637), (621, 26961), (627, 26703), (759, 22059), (817, 20493), (891, 18791), (989, 16929), (1161, 14421), (1311, 12771), (1419, 11799), (1539, 10879), (1863, 8987), (1881, 8901), (2277, 7353), (2451, 6831), (2967, 5643), (3483, 4807), (3933, 4257)]