20563543

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20543}}^1$

素因数の和:20574

約数の個数: 16

約数和(自身を含む): 27611136

約数和(自身を除く): 7047593

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 20543, 143801, 225973, 267059, 1581811, 1869413, 2937649, 20563543]

約数ペア:

[(1, 20563543), (7, 2937649), (11, 1869413), (13, 1581811), (77, 267059), (91, 225973), (143, 143801), (1001, 20543)]