21253928536

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{207121}}^1$

素因数の和:207355

約数の個数: 32

約数和(自身を含む): 40562772480

約数和(自身を除く): 19308843944

約数列:

[1, 2, 4, 8, 101, 127, 202, 254, 404, 508, 808, 1016, 12827, 25654, 51308, 102616, 207121, 414242, 828484, 1656968, 20919221, 26304367, 41838442, 52608734, 83676884, 105217468, 167353768, 210434936, 2656741067, 5313482134, 10626964268, 21253928536]

約数ペア:

[(1, 21253928536), (2, 10626964268), (4, 5313482134), (8, 2656741067), (101, 210434936), (127, 167353768), (202, 105217468), (254, 83676884), (404, 52608734), (508, 41838442), (808, 26304367), (1016, 20919221), (12827, 1656968), (25654, 828484), (51308, 414242), (102616, 207121)]