21844319

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 28308480

約数和(自身を除く): 6464161

約数列:

[1, 7, 19, 23, 37, 133, 161, 193, 259, 437, 703, 851, 1351, 3059, 3667, 4439, 4921, 5957, 7141, 16169, 25669, 31073, 49987, 84341, 113183, 135679, 164243, 590387, 949753, 1149701, 3120617, 21844319]

約数ペア:

[(1, 21844319), (7, 3120617), (19, 1149701), (23, 949753), (37, 590387), (133, 164243), (161, 135679), (193, 113183), (259, 84341), (437, 49987), (703, 31073), (851, 25669), (1351, 16169), (3059, 7141), (3667, 5957), (4439, 4921)]