209103687

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1789}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 346629920

約数和(自身を除く): 137526233

約数列:

[1, 3, 9, 13, 27, 37, 39, 81, 111, 117, 243, 333, 351, 481, 999, 1053, 1443, 1789, 2997, 3159, 4329, 5367, 8991, 12987, 16101, 23257, 38961, 48303, 66193, 69771, 116883, 144909, 198579, 209313, 434727, 595737, 627939, 860509, 1787211, 1883817, 2581527, 5361633, 5651451, 7744581, 16084899, 23233743, 69701229, 209103687]

約数ペア:

[(1, 209103687), (3, 69701229), (9, 23233743), (13, 16084899), (27, 7744581), (37, 5651451), (39, 5361633), (81, 2581527), (111, 1883817), (117, 1787211), (243, 860509), (333, 627939), (351, 595737), (481, 434727), (999, 209313), (1053, 198579), (1443, 144909), (1789, 116883), (2997, 69771), (3159, 66193), (4329, 48303), (5367, 38961), (8991, 23257), (12987, 16101)]