21968128

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:100

約数の個数: 144

約数和(自身を含む): 57689856

約数和(自身を除く): 35721728

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 41, 46, 52, 56, 64, 82, 91, 92, 104, 112, 128, 161, 164, 182, 184, 208, 224, 256, 287, 299, 322, 328, 364, 368, 416, 448, 533, 574, 598, 644, 656, 728, 736, 832, 896, 943, 1066, 1148, 1196, 1288, 1312, 1456, 1472, 1664, 1792, 1886, 2093, 2132, 2296, 2392, 2576, 2624, 2912, 2944, 3328, 3731, 3772, 4186, 4264, 4592, 4784, 5152, 5248, 5824, 5888, 6601, 7462, 7544, 8372, 8528, 9184, 9568, 10304, 10496, 11648, 12259, 13202, 14924, 15088, 16744, 17056, 18368, 19136, 20608, 23296, 24518, 26404, 29848, 30176, 33488, 34112, 36736, 38272, 41216, 49036, 52808, 59696, 60352, 66976, 68224, 73472, 76544, 85813, 98072, 105616, 119392, 120704, 133952, 136448, 171626, 196144, 211232, 238784, 241408, 267904, 343252, 392288, 422464, 477568, 535808, 686504, 784576, 844928, 955136, 1373008, 1569152, 1689856, 2746016, 3138304, 5492032, 10984064, 21968128]

約数ペア:

[(1, 21968128), (2, 10984064), (4, 5492032), (7, 3138304), (8, 2746016), (13, 1689856), (14, 1569152), (16, 1373008), (23, 955136), (26, 844928), (28, 784576), (32, 686504), (41, 535808), (46, 477568), (52, 422464), (56, 392288), (64, 343252), (82, 267904), (91, 241408), (92, 238784), (104, 211232), (112, 196144), (128, 171626), (161, 136448), (164, 133952), (182, 120704), (184, 119392), (208, 105616), (224, 98072), (256, 85813), (287, 76544), (299, 73472), (322, 68224), (328, 66976), (364, 60352), (368, 59696), (416, 52808), (448, 49036), (533, 41216), (574, 38272), (598, 36736), (644, 34112), (656, 33488), (728, 30176), (736, 29848), (832, 26404), (896, 24518), (943, 23296), (1066, 20608), (1148, 19136), (1196, 18368), (1288, 17056), (1312, 16744), (1456, 15088), (1472, 14924), (1664, 13202), (1792, 12259), (1886, 11648), (2093, 10496), (2132, 10304), (2296, 9568), (2392, 9184), (2576, 8528), (2624, 8372), (2912, 7544), (2944, 7462), (3328, 6601), (3731, 5888), (3772, 5824), (4186, 5248), (4264, 5152), (4592, 4784)]