201019221

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2917}}^1$

素因数の和:2986

約数の個数: 48

約数和(自身を含む): 339888640

約数和(自身を除く): 138869419

約数列:

[1, 3, 9, 13, 19, 31, 39, 57, 93, 117, 171, 247, 279, 403, 589, 741, 1209, 1767, 2223, 2917, 3627, 5301, 7657, 8751, 22971, 26253, 37921, 55423, 68913, 90427, 113763, 166269, 271281, 341289, 498807, 720499, 813843, 1175551, 1718113, 2161497, 3526653, 5154339, 6484491, 10579959, 15463017, 22335469, 67006407, 201019221]

約数ペア:

[(1, 201019221), (3, 67006407), (9, 22335469), (13, 15463017), (19, 10579959), (31, 6484491), (39, 5154339), (57, 3526653), (93, 2161497), (117, 1718113), (171, 1175551), (247, 813843), (279, 720499), (403, 498807), (589, 341289), (741, 271281), (1209, 166269), (1767, 113763), (2223, 90427), (2917, 68913), (3627, 55423), (5301, 37921), (7657, 26253), (8751, 22971)]