18915697988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{118463}}^1$

素因数の和:118688

約数の個数: 48

約数和(自身を含む): 38211747840

約数和(自身を除く): 19296049852

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 191, 209, 382, 418, 764, 836, 2101, 3629, 4202, 7258, 8404, 14516, 39919, 79838, 118463, 159676, 236926, 473852, 1303093, 2250797, 2606186, 4501594, 5212372, 9003188, 22626433, 24758767, 45252866, 49517534, 90505732, 99035068, 248890763, 429902227, 497781526, 859804454, 995563052, 1719608908, 4728924497, 9457848994, 18915697988]

約数ペア:

[(1, 18915697988), (2, 9457848994), (4, 4728924497), (11, 1719608908), (19, 995563052), (22, 859804454), (38, 497781526), (44, 429902227), (76, 248890763), (191, 99035068), (209, 90505732), (382, 49517534), (418, 45252866), (764, 24758767), (836, 22626433), (2101, 9003188), (3629, 5212372), (4202, 4501594), (7258, 2606186), (8404, 2250797), (14516, 1303093), (39919, 473852), (79838, 236926), (118463, 159676)]