20273979

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 31726080

約数和(自身を除く): 11452101

約数列:

[1, 3, 11, 17, 33, 51, 71, 187, 213, 509, 561, 781, 1207, 1527, 2343, 3621, 5599, 8653, 13277, 16797, 25959, 36139, 39831, 95183, 108417, 285549, 397529, 614363, 1192587, 1843089, 6757993, 20273979]

約数ペア:

[(1, 20273979), (3, 6757993), (11, 1843089), (17, 1192587), (33, 614363), (51, 397529), (71, 285549), (187, 108417), (213, 95183), (509, 39831), (561, 36139), (781, 25959), (1207, 16797), (1527, 13277), (2343, 8653), (3621, 5599)]