21884816

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 44127384

約数和(自身を除く): 22242568

約数列:

[1, 2, 4, 8, 16, 41, 73, 82, 146, 164, 292, 328, 457, 584, 656, 914, 1168, 1828, 2993, 3656, 5986, 7312, 11972, 18737, 23944, 33361, 37474, 47888, 66722, 74948, 133444, 149896, 266888, 299792, 533776, 1367801, 2735602, 5471204, 10942408, 21884816]

約数ペア:

[(1, 21884816), (2, 10942408), (4, 5471204), (8, 2735602), (16, 1367801), (41, 533776), (73, 299792), (82, 266888), (146, 149896), (164, 133444), (292, 74948), (328, 66722), (457, 47888), (584, 37474), (656, 33361), (914, 23944), (1168, 18737), (1828, 11972), (2993, 7312), (3656, 5986)]