21990912

素因数分解:

$2^9\times 3^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 80

約数和(自身を含む): 59579520

約数和(自身を除く): 37588608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 103, 128, 139, 192, 206, 256, 278, 309, 384, 412, 417, 512, 556, 618, 768, 824, 834, 1112, 1236, 1536, 1648, 1668, 2224, 2472, 3296, 3336, 4448, 4944, 6592, 6672, 8896, 9888, 13184, 13344, 14317, 17792, 19776, 26368, 26688, 28634, 35584, 39552, 42951, 52736, 53376, 57268, 71168, 79104, 85902, 106752, 114536, 158208, 171804, 213504, 229072, 343608, 458144, 687216, 916288, 1374432, 1832576, 2748864, 3665152, 5497728, 7330304, 10995456, 21990912]

約数ペア:

[(1, 21990912), (2, 10995456), (3, 7330304), (4, 5497728), (6, 3665152), (8, 2748864), (12, 1832576), (16, 1374432), (24, 916288), (32, 687216), (48, 458144), (64, 343608), (96, 229072), (103, 213504), (128, 171804), (139, 158208), (192, 114536), (206, 106752), (256, 85902), (278, 79104), (309, 71168), (384, 57268), (412, 53376), (417, 52736), (512, 42951), (556, 39552), (618, 35584), (768, 28634), (824, 26688), (834, 26368), (1112, 19776), (1236, 17792), (1536, 14317), (1648, 13344), (1668, 13184), (2224, 9888), (2472, 8896), (3296, 6672), (3336, 6592), (4448, 4944)]