20709824.000000000

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{13597}}^1$

素因数の和:13640

約数の個数: 48

約数和(自身を含む): 279030960

約数和(自身を除く): 156440408

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 161, 184, 196, 322, 392, 644, 1127, 1288, 2254, 4508, 9016, 13597, 27194, 54388, 95179, 108776, 190358, 312731, 380716, 625462, 666253, 761432, 1250924, 1332506, 2189117, 2501848, 2665012, 4378234, 5330024, 8756468, 15323819, 17512936, 30647638, 61295276, 122590552]

約数ペア:

[(1, 122590552), (2, 61295276), (4, 30647638), (7, 17512936), (8, 15323819), (14, 8756468), (23, 5330024), (28, 4378234), (46, 2665012), (49, 2501848), (56, 2189117), (92, 1332506), (98, 1250924), (161, 761432), (184, 666253), (196, 625462), (322, 380716), (392, 312731), (644, 190358), (1127, 108776), (1288, 95179), (2254, 54388), (4508, 27194), (9016, 13597)]