28387359

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 57867264

約数和(自身を除く): 29479905

約数列:

[1, 3, 7, 9, 11, 13, 21, 23, 33, 39, 63, 69, 77, 91, 99, 117, 137, 143, 161, 207, 231, 253, 273, 299, 411, 429, 483, 693, 759, 819, 897, 959, 1001, 1233, 1287, 1449, 1507, 1771, 1781, 2093, 2277, 2691, 2877, 3003, 3151, 3289, 4521, 5313, 5343, 6279, 8631, 9009, 9453, 9867, 10549, 12467, 13563, 15939, 16029, 18837, 19591, 22057, 23023, 28359, 29601, 31647, 34661, 37401, 40963, 58773, 66171, 69069, 94941, 103983, 112203, 122889, 137137, 176319, 198513, 207207, 242627, 286741, 311949, 368667, 411411, 450593, 727881, 860223, 1234233, 1351779, 2183643, 2580669, 3154151, 4055337, 9462453, 28387359]

約数ペア:

[(1, 28387359), (3, 9462453), (7, 4055337), (9, 3154151), (11, 2580669), (13, 2183643), (21, 1351779), (23, 1234233), (33, 860223), (39, 727881), (63, 450593), (69, 411411), (77, 368667), (91, 311949), (99, 286741), (117, 242627), (137, 207207), (143, 198513), (161, 176319), (207, 137137), (231, 122889), (253, 112203), (273, 103983), (299, 94941), (411, 69069), (429, 66171), (483, 58773), (693, 40963), (759, 37401), (819, 34661), (897, 31647), (959, 29601), (1001, 28359), (1233, 23023), (1287, 22057), (1449, 19591), (1507, 18837), (1771, 16029), (1781, 15939), (2093, 13563), (2277, 12467), (2691, 10549), (2877, 9867), (3003, 9453), (3151, 9009), (3289, 8631), (4521, 6279), (5313, 5343)]