20999617

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 23109120

約数和(自身を除く): 2109503

約数列:

[1, 19, 31, 101, 353, 589, 1919, 3131, 6707, 10943, 35653, 59489, 207917, 677407, 1105243, 20999617]

約数ペア:

[(1, 20999617), (19, 1105243), (31, 677407), (101, 207917), (353, 59489), (589, 35653), (1919, 10943), (3131, 6707)]