1287919921

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{10949}}^1$

素因数の和:11160

約数の個数: 16

約数和(自身を含む): 1398096000

約数和(自身を除く): 110176079

約数列:

[1, 19, 41, 151, 779, 2869, 6191, 10949, 117629, 208031, 448909, 1653299, 8529271, 31412681, 67785259, 1287919921]

約数ペア:

[(1, 1287919921), (19, 67785259), (41, 31412681), (151, 8529271), (779, 1653299), (2869, 448909), (6191, 208031), (10949, 117629)]