21107859

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{1709}}^1$

素因数の和:1914

約数の個数: 16

約数和(自身を含む): 29548800

約数和(自身を除く): 8440941

約数列:

[1, 3, 23, 69, 179, 537, 1709, 4117, 5127, 12351, 39307, 117921, 305911, 917733, 7035953, 21107859]

約数ペア:

[(1, 21107859), (3, 7035953), (23, 917733), (69, 305911), (179, 117921), (537, 39307), (1709, 12351), (4117, 5127)]