28680957

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2003}}^1$

素因数の和:2089

約数の個数: 24

約数和(自身を含む): 43558944

約数和(自身を除く): 14877987

約数列:

[1, 3, 9, 37, 43, 111, 129, 333, 387, 1591, 2003, 4773, 6009, 14319, 18027, 74111, 86129, 222333, 258387, 666999, 775161, 3186773, 9560319, 28680957]

約数ペア:

[(1, 28680957), (3, 9560319), (9, 3186773), (37, 775161), (43, 666999), (111, 258387), (129, 222333), (333, 86129), (387, 74111), (1591, 18027), (2003, 14319), (4773, 6009)]