221352872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{16759}}^1$

素因数の和:16905

約数の個数: 32

約数和(自身を含む): 450508800

約数和(自身を除く): 229155928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1651, 3302, 6604, 13208, 16759, 33518, 67036, 134072, 217867, 435734, 871468, 1742936, 2128393, 4256786, 8513572, 17027144, 27669109, 55338218, 110676436, 221352872]

約数ペア:

[(1, 221352872), (2, 110676436), (4, 55338218), (8, 27669109), (13, 17027144), (26, 8513572), (52, 4256786), (104, 2128393), (127, 1742936), (254, 871468), (508, 435734), (1016, 217867), (1651, 134072), (3302, 67036), (6604, 33518), (13208, 16759)]