20942204

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{313}}^1\times {\mathrm{389}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 37717680

約数和(自身を除く): 16775476

約数列:

[1, 2, 4, 43, 86, 172, 313, 389, 626, 778, 1252, 1556, 13459, 16727, 26918, 33454, 53836, 66908, 121757, 243514, 487028, 5235551, 10471102, 20942204]

約数ペア:

[(1, 20942204), (2, 10471102), (4, 5235551), (43, 487028), (86, 243514), (172, 121757), (313, 66908), (389, 53836), (626, 33454), (778, 26918), (1252, 16727), (1556, 13459)]