21656224

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{113}}^2$

素因数の和:289

約数の個数: 36

約数和(自身を含む): 43827966

約数和(自身を除く): 22171742

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 113, 212, 226, 424, 452, 848, 904, 1696, 1808, 3616, 5989, 11978, 12769, 23956, 25538, 47912, 51076, 95824, 102152, 191648, 204304, 408608, 676757, 1353514, 2707028, 5414056, 10828112, 21656224]

約数ペア:

[(1, 21656224), (2, 10828112), (4, 5414056), (8, 2707028), (16, 1353514), (32, 676757), (53, 408608), (106, 204304), (113, 191648), (212, 102152), (226, 95824), (424, 51076), (452, 47912), (848, 25538), (904, 23956), (1696, 12769), (1808, 11978), (3616, 5989)]