2009972

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{499}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 3780000

約数和(自身を除く): 1770028

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 499, 998, 1007, 1996, 2014, 4028, 9481, 18962, 26447, 37924, 52894, 105788, 502493, 1004986, 2009972]

約数ペア:

[(1, 2009972), (2, 1004986), (4, 502493), (19, 105788), (38, 52894), (53, 37924), (76, 26447), (106, 18962), (212, 9481), (499, 4028), (998, 2014), (1007, 1996)]