21231392

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:370

約数の個数: 96

約数和(自身を含む): 53851392

約数和(自身を除く): 32620000

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 46, 52, 56, 91, 92, 104, 112, 161, 182, 184, 208, 224, 299, 317, 322, 364, 368, 416, 598, 634, 644, 728, 736, 1196, 1268, 1288, 1456, 2093, 2219, 2392, 2536, 2576, 2912, 4121, 4186, 4438, 4784, 5072, 5152, 7291, 8242, 8372, 8876, 9568, 10144, 14582, 16484, 16744, 17752, 28847, 29164, 32968, 33488, 35504, 51037, 57694, 58328, 65936, 66976, 71008, 94783, 102074, 115388, 116656, 131872, 189566, 204148, 230776, 233312, 379132, 408296, 461552, 663481, 758264, 816592, 923104, 1326962, 1516528, 1633184, 2653924, 3033056, 5307848, 10615696, 21231392]

約数ペア:

[(1, 21231392), (2, 10615696), (4, 5307848), (7, 3033056), (8, 2653924), (13, 1633184), (14, 1516528), (16, 1326962), (23, 923104), (26, 816592), (28, 758264), (32, 663481), (46, 461552), (52, 408296), (56, 379132), (91, 233312), (92, 230776), (104, 204148), (112, 189566), (161, 131872), (182, 116656), (184, 115388), (208, 102074), (224, 94783), (299, 71008), (317, 66976), (322, 65936), (364, 58328), (368, 57694), (416, 51037), (598, 35504), (634, 33488), (644, 32968), (728, 29164), (736, 28847), (1196, 17752), (1268, 16744), (1288, 16484), (1456, 14582), (2093, 10144), (2219, 9568), (2392, 8876), (2536, 8372), (2576, 8242), (2912, 7291), (4121, 5152), (4186, 5072), (4438, 4784)]