81407918

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{6359}}^1$

素因数の和:6571

約数の個数: 16

約数和(自身を含む): 126156960

約数和(自身を除く): 44749042

約数列:

[1, 2, 37, 74, 173, 346, 6359, 6401, 12718, 12802, 235283, 470566, 1100107, 2200214, 40703959, 81407918]

約数ペア:

[(1, 81407918), (2, 40703959), (37, 2200214), (74, 1100107), (173, 470566), (346, 235283), (6359, 12802), (6401, 12718)]