21538656

素因数分解:

$2^5\times 3^3\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:373

約数の個数: 96

約数和(自身を含む): 63715680

約数和(自身を除く): 42177024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 97, 108, 144, 194, 216, 257, 288, 291, 388, 432, 514, 582, 771, 776, 864, 873, 1028, 1164, 1542, 1552, 1746, 2056, 2313, 2328, 2619, 3084, 3104, 3492, 4112, 4626, 4656, 5238, 6168, 6939, 6984, 8224, 9252, 9312, 10476, 12336, 13878, 13968, 18504, 20952, 24672, 24929, 27756, 27936, 37008, 41904, 49858, 55512, 74016, 74787, 83808, 99716, 111024, 149574, 199432, 222048, 224361, 299148, 398864, 448722, 598296, 673083, 797728, 897444, 1196592, 1346166, 1794888, 2393184, 2692332, 3589776, 5384664, 7179552, 10769328, 21538656]

約数ペア:

[(1, 21538656), (2, 10769328), (3, 7179552), (4, 5384664), (6, 3589776), (8, 2692332), (9, 2393184), (12, 1794888), (16, 1346166), (18, 1196592), (24, 897444), (27, 797728), (32, 673083), (36, 598296), (48, 448722), (54, 398864), (72, 299148), (96, 224361), (97, 222048), (108, 199432), (144, 149574), (194, 111024), (216, 99716), (257, 83808), (288, 74787), (291, 74016), (388, 55512), (432, 49858), (514, 41904), (582, 37008), (771, 27936), (776, 27756), (864, 24929), (873, 24672), (1028, 20952), (1164, 18504), (1542, 13968), (1552, 13878), (1746, 12336), (2056, 10476), (2313, 9312), (2328, 9252), (2619, 8224), (3084, 6984), (3104, 6939), (3492, 6168), (4112, 5238), (4626, 4656)]