19946559

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{929}}^1$

素因数の和:1370

約数の個数: 16

約数和(自身を含む): 28257120

約数和(自身を除く): 8310561

約数列:

[1, 3, 17, 51, 421, 929, 1263, 2787, 7157, 15793, 21471, 47379, 391109, 1173327, 6648853, 19946559]

約数ペア:

[(1, 19946559), (3, 6648853), (17, 1173327), (51, 391109), (421, 47379), (929, 21471), (1263, 15793), (2787, 7157)]