81977049

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 158906880

約数和(自身を除く): 76929831

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 43, 49, 63, 77, 99, 129, 131, 147, 189, 231, 297, 301, 387, 393, 441, 473, 539, 693, 903, 917, 1161, 1179, 1323, 1419, 1441, 1617, 2079, 2107, 2709, 2751, 3311, 3537, 4257, 4323, 4851, 5633, 6321, 6419, 8127, 8253, 9933, 10087, 12771, 12969, 14553, 16899, 18963, 19257, 23177, 24759, 29799, 30261, 38907, 39431, 50697, 56889, 57771, 61963, 69531, 70609, 89397, 90783, 118293, 152091, 173313, 185889, 208593, 211827, 272349, 276017, 354879, 433741, 557667, 625779, 635481, 828051, 1064637, 1301223, 1673001, 1906443, 2484153, 3036187, 3903669, 7452459, 9108561, 11711007, 27325683, 81977049]

約数ペア:

[(1, 81977049), (3, 27325683), (7, 11711007), (9, 9108561), (11, 7452459), (21, 3903669), (27, 3036187), (33, 2484153), (43, 1906443), (49, 1673001), (63, 1301223), (77, 1064637), (99, 828051), (129, 635481), (131, 625779), (147, 557667), (189, 433741), (231, 354879), (297, 276017), (301, 272349), (387, 211827), (393, 208593), (441, 185889), (473, 173313), (539, 152091), (693, 118293), (903, 90783), (917, 89397), (1161, 70609), (1179, 69531), (1323, 61963), (1419, 57771), (1441, 56889), (1617, 50697), (2079, 39431), (2107, 38907), (2709, 30261), (2751, 29799), (3311, 24759), (3537, 23177), (4257, 19257), (4323, 18963), (4851, 16899), (5633, 14553), (6321, 12969), (6419, 12771), (8127, 10087), (8253, 9933)]