20345884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20593}}^1$

素因数の和:20629

約数の個数: 24

約数和(自身を含む): 40364240

約数和(自身を除く): 20018356

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20593, 41186, 82372, 267709, 391267, 535418, 782534, 1070836, 1565068, 5086471, 10172942, 20345884]

約数ペア:

[(1, 20345884), (2, 10172942), (4, 5086471), (13, 1565068), (19, 1070836), (26, 782534), (38, 535418), (52, 391267), (76, 267709), (247, 82372), (494, 41186), (988, 20593)]