20689794

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{26731}}^1$

素因数の和:26782

約数の個数: 24

約数和(自身を含む): 45872112

約数和(自身を除く): 25182318

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 26731, 53462, 80193, 160386, 240579, 481158, 1149433, 2298866, 3448299, 6896598, 10344897, 20689794]

約数ペア:

[(1, 20689794), (2, 10344897), (3, 6896598), (6, 3448299), (9, 2298866), (18, 1149433), (43, 481158), (86, 240579), (129, 160386), (258, 80193), (387, 53462), (774, 26731)]