21328672

素因数分解:

$2^5\times {\mathrm{89}}^1\times {\mathrm{7489}}^1$

素因数の和:7588

約数の個数: 24

約数和(自身を含む): 42468300

約数和(自身を除く): 21139628

約数列:

[1, 2, 4, 8, 16, 32, 89, 178, 356, 712, 1424, 2848, 7489, 14978, 29956, 59912, 119824, 239648, 666521, 1333042, 2666084, 5332168, 10664336, 21328672]

約数ペア:

[(1, 21328672), (2, 10664336), (4, 5332168), (8, 2666084), (16, 1333042), (32, 666521), (89, 239648), (178, 119824), (356, 59912), (712, 29956), (1424, 14978), (2848, 7489)]