21189598

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{5521}}^1$

素因数の和:5643

約数の個数: 16

約数和(自身を含む): 33794640

約数和(自身を除く): 12605042

約数列:

[1, 2, 19, 38, 101, 202, 1919, 3838, 5521, 11042, 104899, 209798, 557621, 1115242, 10594799, 21189598]

約数ペア:

[(1, 21189598), (2, 10594799), (19, 1115242), (38, 557621), (101, 209798), (202, 104899), (1919, 11042), (3838, 5521)]