20151213

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{947}}^1$

素因数の和:1164

約数の個数: 16

約数和(自身を含む): 27711936

約数和(自身を除く): 7560723

約数列:

[1, 3, 41, 123, 173, 519, 947, 2841, 7093, 21279, 38827, 116481, 163831, 491493, 6717071, 20151213]

約数ペア:

[(1, 20151213), (3, 6717071), (41, 491493), (123, 163831), (173, 116481), (519, 38827), (947, 21279), (2841, 7093)]