655123521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1\times {\mathrm{613}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 958625920

約数和(自身を除く): 303502399

約数列:

[1, 3, 13, 39, 67, 201, 409, 613, 871, 1227, 1839, 2613, 5317, 7969, 15951, 23907, 27403, 41071, 82209, 123213, 250717, 356239, 533923, 752151, 1068717, 1601769, 3259321, 9777963, 16798039, 50394117, 218374507, 655123521]

約数ペア:

[(1, 655123521), (3, 218374507), (13, 50394117), (39, 16798039), (67, 9777963), (201, 3259321), (409, 1601769), (613, 1068717), (871, 752151), (1227, 533923), (1839, 356239), (2613, 250717), (5317, 123213), (7969, 82209), (15951, 41071), (23907, 27403)]