20798578

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 14193422

約数列:

[1, 2, 19, 23, 38, 46, 53, 106, 437, 449, 874, 898, 1007, 1219, 2014, 2438, 8531, 10327, 17062, 20654, 23161, 23797, 46322, 47594, 196213, 392426, 452143, 547331, 904286, 1094662, 10399289, 20798578]

約数ペア:

[(1, 20798578), (2, 10399289), (19, 1094662), (23, 904286), (38, 547331), (46, 452143), (53, 392426), (106, 196213), (437, 47594), (449, 46322), (874, 23797), (898, 23161), (1007, 20654), (1219, 17062), (2014, 10327), (2438, 8531)]