21821648

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10739}}^1$

素因数の和:10874

約数の個数: 20

約数和(自身を含む): 42616320

約数和(自身を除く): 20794672

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10739, 21478, 42956, 85912, 171824, 1363853, 2727706, 5455412, 10910824, 21821648]

約数ペア:

[(1, 21821648), (2, 10910824), (4, 5455412), (8, 2727706), (16, 1363853), (127, 171824), (254, 85912), (508, 42956), (1016, 21478), (2032, 10739)]