21996128

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 33161632

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 79, 88, 112, 113, 154, 158, 176, 224, 226, 308, 316, 352, 452, 553, 616, 632, 791, 869, 904, 1106, 1232, 1243, 1264, 1582, 1738, 1808, 2212, 2464, 2486, 2528, 3164, 3476, 3616, 4424, 4972, 6083, 6328, 6952, 8701, 8848, 8927, 9944, 12166, 12656, 13904, 17402, 17696, 17854, 19888, 24332, 25312, 27808, 34804, 35708, 39776, 48664, 62489, 69608, 71416, 97328, 98197, 124978, 139216, 142832, 194656, 196394, 249956, 278432, 285664, 392788, 499912, 687379, 785576, 999824, 1374758, 1571152, 1999648, 2749516, 3142304, 5499032, 10998064, 21996128]

約数ペア:

[(1, 21996128), (2, 10998064), (4, 5499032), (7, 3142304), (8, 2749516), (11, 1999648), (14, 1571152), (16, 1374758), (22, 999824), (28, 785576), (32, 687379), (44, 499912), (56, 392788), (77, 285664), (79, 278432), (88, 249956), (112, 196394), (113, 194656), (154, 142832), (158, 139216), (176, 124978), (224, 98197), (226, 97328), (308, 71416), (316, 69608), (352, 62489), (452, 48664), (553, 39776), (616, 35708), (632, 34804), (791, 27808), (869, 25312), (904, 24332), (1106, 19888), (1232, 17854), (1243, 17696), (1264, 17402), (1582, 13904), (1738, 12656), (1808, 12166), (2212, 9944), (2464, 8927), (2486, 8848), (2528, 8701), (3164, 6952), (3476, 6328), (3616, 6083), (4424, 4972)]