20778476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{11887}}^1$

素因数の和:11933

約数の個数: 24

約数和(自身を含む): 39943680

約数和(自身を除く): 19165204

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 437, 874, 1748, 11887, 23774, 47548, 225853, 273401, 451706, 546802, 903412, 1093604, 5194619, 10389238, 20778476]

約数ペア:

[(1, 20778476), (2, 10389238), (4, 5194619), (19, 1093604), (23, 903412), (38, 546802), (46, 451706), (76, 273401), (92, 225853), (437, 47548), (874, 23774), (1748, 11887)]