19944981

素因数分解:

$3^3\times 7^1\times {\mathrm{105529}}^1$

素因数の和:105545

約数の個数: 16

約数和(自身を含む): 33769600

約数和(自身を除く): 13824619

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 105529, 316587, 738703, 949761, 2216109, 2849283, 6648327, 19944981]

約数ペア:

[(1, 19944981), (3, 6648327), (7, 2849283), (9, 2216109), (21, 949761), (27, 738703), (63, 316587), (189, 105529)]