21544280

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{4241}}^1$

素因数の和:4379

約数の個数: 32

約数和(自身を含む): 48867840

約数和(自身を除く): 27323560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 4241, 5080, 8482, 16964, 21205, 33928, 42410, 84820, 169640, 538607, 1077214, 2154428, 2693035, 4308856, 5386070, 10772140, 21544280]

約数ペア:

[(1, 21544280), (2, 10772140), (4, 5386070), (5, 4308856), (8, 2693035), (10, 2154428), (20, 1077214), (40, 538607), (127, 169640), (254, 84820), (508, 42410), (635, 33928), (1016, 21205), (1270, 16964), (2540, 8482), (4241, 5080)]