21729169

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4783}}^1$

素因数の和:4860

約数の個数: 16

約数和(自身を含む): 27555840

約数和(自身を除く): 5826671

約数列:

[1, 7, 11, 59, 77, 413, 649, 4543, 4783, 33481, 52613, 282197, 368291, 1975379, 3104167, 21729169]

約数ペア:

[(1, 21729169), (7, 3104167), (11, 1975379), (59, 368291), (77, 282197), (413, 52613), (649, 33481), (4543, 4783)]