19993377

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 10419423

約数列:

[1, 3, 17, 19, 47, 51, 57, 141, 323, 439, 799, 893, 969, 1317, 2397, 2679, 7463, 8341, 15181, 20633, 22389, 25023, 45543, 61899, 141797, 350761, 392027, 425391, 1052283, 1176081, 6664459, 19993377]

約数ペア:

[(1, 19993377), (3, 6664459), (17, 1176081), (19, 1052283), (47, 425391), (51, 392027), (57, 350761), (141, 141797), (323, 61899), (439, 45543), (799, 25023), (893, 22389), (969, 20633), (1317, 15181), (2397, 8341), (2679, 7463)]