19959537

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{10889}}^1$

素因数の和:10952

約数の個数: 16

約数和(自身を含む): 29272320

約数和(自身を除く): 9312783

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 10889, 32667, 141557, 424671, 511783, 1535349, 6653179, 19959537]

約数ペア:

[(1, 19959537), (3, 6653179), (13, 1535349), (39, 511783), (47, 424671), (141, 141557), (611, 32667), (1833, 10889)]