19796211

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 32419200

約数和(自身を除く): 12622989

約数列:

[1, 3, 9, 17, 27, 43, 51, 59, 129, 153, 177, 289, 387, 459, 531, 731, 867, 1003, 1161, 1593, 2193, 2537, 2601, 3009, 6579, 7611, 7803, 9027, 12427, 17051, 19737, 22833, 27081, 37281, 43129, 51153, 68499, 111843, 129387, 153459, 335529, 388161, 460377, 733193, 1164483, 2199579, 6598737, 19796211]

約数ペア:

[(1, 19796211), (3, 6598737), (9, 2199579), (17, 1164483), (27, 733193), (43, 460377), (51, 388161), (59, 335529), (129, 153459), (153, 129387), (177, 111843), (289, 68499), (387, 51153), (459, 43129), (531, 37281), (731, 27081), (867, 22833), (1003, 19737), (1161, 17051), (1593, 12427), (2193, 9027), (2537, 7803), (2601, 7611), (3009, 6579)]