20290917

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2803}}^1$

素因数の和:2952

約数の個数: 16

約数和(自身を含む): 28712960

約数和(自身を除く): 8422043

約数列:

[1, 3, 19, 57, 127, 381, 2413, 2803, 7239, 8409, 53257, 159771, 355981, 1067943, 6763639, 20290917]

約数ペア:

[(1, 20290917), (3, 6763639), (19, 1067943), (57, 355981), (127, 159771), (381, 53257), (2413, 8409), (2803, 7239)]