20806484258

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{761}}^1\times {\mathrm{21943}}^1$

素因数の和:22802

約数の個数: 32

約数和(自身を含む): 36118068480

約数和(自身を除く): 15311584222

約数列:

[1, 2, 7, 14, 89, 178, 623, 761, 1246, 1522, 5327, 10654, 21943, 43886, 67729, 135458, 153601, 307202, 474103, 948206, 1952927, 3905854, 13670489, 16698623, 27340978, 33397246, 116890361, 233780722, 1486177447, 2972354894, 10403242129, 20806484258]

約数ペア:

[(1, 20806484258), (2, 10403242129), (7, 2972354894), (14, 1486177447), (89, 233780722), (178, 116890361), (623, 33397246), (761, 27340978), (1246, 16698623), (1522, 13670489), (5327, 3905854), (10654, 1952927), (21943, 948206), (43886, 474103), (67729, 307202), (135458, 153601)]