28135107

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 56593152

約数和(自身を除く): 28458045

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 81, 91, 99, 117, 143, 189, 231, 273, 297, 347, 351, 429, 567, 693, 819, 891, 1001, 1041, 1053, 1287, 2079, 2429, 2457, 3003, 3123, 3817, 3861, 4511, 6237, 7287, 7371, 9009, 9369, 11451, 11583, 13533, 21861, 26719, 27027, 28107, 31577, 34353, 40599, 49621, 65583, 80157, 81081, 94731, 103059, 121797, 148863, 196749, 240471, 284193, 309177, 347347, 365391, 446589, 721413, 852579, 1042041, 1339767, 2164239, 2557737, 3126123, 4019301, 9378369, 28135107]

約数ペア:

[(1, 28135107), (3, 9378369), (7, 4019301), (9, 3126123), (11, 2557737), (13, 2164239), (21, 1339767), (27, 1042041), (33, 852579), (39, 721413), (63, 446589), (77, 365391), (81, 347347), (91, 309177), (99, 284193), (117, 240471), (143, 196749), (189, 148863), (231, 121797), (273, 103059), (297, 94731), (347, 81081), (351, 80157), (429, 65583), (567, 49621), (693, 40599), (819, 34353), (891, 31577), (1001, 28107), (1041, 27027), (1053, 26719), (1287, 21861), (2079, 13533), (2429, 11583), (2457, 11451), (3003, 9369), (3123, 9009), (3817, 7371), (3861, 7287), (4511, 6237)]