19806381

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13669}}^1$

素因数の和:13705

約数の個数: 24

約数和(自身を含む): 34120320

約数和(自身を除く): 14313939

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 13669, 41007, 95683, 123021, 287049, 314387, 861147, 943161, 2200709, 2829483, 6602127, 19806381]

約数ペア:

[(1, 19806381), (3, 6602127), (7, 2829483), (9, 2200709), (21, 943161), (23, 861147), (63, 314387), (69, 287049), (161, 123021), (207, 95683), (483, 41007), (1449, 13669)]