1991954787

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{2543}}^1\times {\mathrm{15359}}^1$

素因数の和:17922

約数の個数: 16

約数和(自身を含む): 2813460480

約数和(自身を除く): 821505693

約数列:

[1, 3, 17, 51, 2543, 7629, 15359, 43231, 46077, 129693, 261103, 783309, 39057937, 117173811, 663984929, 1991954787]

約数ペア:

[(1, 1991954787), (3, 663984929), (17, 117173811), (51, 39057937), (2543, 783309), (7629, 261103), (15359, 129693), (43231, 46077)]