20620814

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7643}}^1$

素因数の和:7735

約数の個数: 16

約数和(自身を含む): 33022080

約数和(自身を除く): 12401266

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7643, 15286, 145217, 290434, 542653, 1085306, 10310407, 20620814]

約数ペア:

[(1, 20620814), (2, 10310407), (19, 1085306), (38, 542653), (71, 290434), (142, 145217), (1349, 15286), (2698, 7643)]