20491328

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2239}}^1$

素因数の和:2275

約数の個数: 56

約数和(自身を含む): 47792640

約数和(自身を除く): 27301312

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 104, 143, 176, 208, 286, 352, 416, 572, 704, 832, 1144, 2239, 2288, 4478, 4576, 8956, 9152, 17912, 24629, 29107, 35824, 49258, 58214, 71648, 98516, 116428, 143296, 197032, 232856, 320177, 394064, 465712, 640354, 788128, 931424, 1280708, 1576256, 1862848, 2561416, 5122832, 10245664, 20491328]

約数ペア:

[(1, 20491328), (2, 10245664), (4, 5122832), (8, 2561416), (11, 1862848), (13, 1576256), (16, 1280708), (22, 931424), (26, 788128), (32, 640354), (44, 465712), (52, 394064), (64, 320177), (88, 232856), (104, 197032), (143, 143296), (176, 116428), (208, 98516), (286, 71648), (352, 58214), (416, 49258), (572, 35824), (704, 29107), (832, 24629), (1144, 17912), (2239, 9152), (2288, 8956), (4478, 4576)]