20143557

素因数分解:

$3^2\times 7^2\times {\mathrm{45677}}^1$

素因数の和:45697

約数の個数: 18

約数和(自身を含む): 33847398

約数和(自身を除く): 13703841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45677, 137031, 319739, 411093, 959217, 2238173, 2877651, 6714519, 20143557]

約数ペア:

[(1, 20143557), (3, 6714519), (7, 2877651), (9, 2238173), (21, 959217), (49, 411093), (63, 319739), (147, 137031), (441, 45677)]