20005973

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 22256640

約数和(自身を除く): 2250667

約数列:

[1, 13, 47, 137, 239, 611, 1781, 3107, 6439, 11233, 32743, 83707, 146029, 425659, 1538921, 20005973]

約数ペア:

[(1, 20005973), (13, 1538921), (47, 425659), (137, 146029), (239, 83707), (611, 32743), (1781, 11233), (3107, 6439)]