20945956

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{5449}}^1$

素因数の和:5515

約数の個数: 18

約数和(自身を含む): 37882950

約数和(自身を除く): 16936994

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 5449, 10898, 21796, 168919, 337838, 675676, 5236489, 10472978, 20945956]

約数ペア:

[(1, 20945956), (2, 10472978), (4, 5236489), (31, 675676), (62, 337838), (124, 168919), (961, 21796), (1922, 10898), (3844, 5449)]