209213985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{11239}}^1$

素因数の和:11337

約数の個数: 32

約数和(自身を含む): 359320320

約数和(自身を除く): 150106335

約数列:

[1, 3, 5, 15, 17, 51, 73, 85, 219, 255, 365, 1095, 1241, 3723, 6205, 11239, 18615, 33717, 56195, 168585, 191063, 573189, 820447, 955315, 2461341, 2865945, 4102235, 12306705, 13947599, 41842797, 69737995, 209213985]

約数ペア:

[(1, 209213985), (3, 69737995), (5, 41842797), (15, 13947599), (17, 12306705), (51, 4102235), (73, 2865945), (85, 2461341), (219, 955315), (255, 820447), (365, 573189), (1095, 191063), (1241, 168585), (3723, 56195), (6205, 33717), (11239, 18615)]