201990906

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{50777}}^1$

素因数の和:50815

約数の個数: 48

約数和(自身を含む): 499046184

約数和(自身を除く): 297055278

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 50777, 101554, 152331, 304662, 456993, 660101, 863209, 913986, 1320202, 1726418, 1980303, 2589627, 3960606, 5179254, 5940909, 7768881, 11221717, 11881818, 15537762, 22443434, 33665151, 67330302, 100995453, 201990906]

約数ペア:

[(1, 201990906), (2, 100995453), (3, 67330302), (6, 33665151), (9, 22443434), (13, 15537762), (17, 11881818), (18, 11221717), (26, 7768881), (34, 5940909), (39, 5179254), (51, 3960606), (78, 2589627), (102, 1980303), (117, 1726418), (153, 1320202), (221, 913986), (234, 863209), (306, 660101), (442, 456993), (663, 304662), (1326, 152331), (1989, 101554), (3978, 50777)]