256941321

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{8329}}^1$

素因数の和:8465

約数の個数: 32

約数和(自身を含む): 425429760

約数和(自身を除く): 168488439

約数列:

[1, 3, 7, 13, 21, 39, 91, 113, 273, 339, 791, 1469, 2373, 4407, 8329, 10283, 24987, 30849, 58303, 108277, 174909, 324831, 757939, 941177, 2273817, 2823531, 6588239, 12235301, 19764717, 36705903, 85647107, 256941321]

約数ペア:

[(1, 256941321), (3, 85647107), (7, 36705903), (13, 19764717), (21, 12235301), (39, 6588239), (91, 2823531), (113, 2273817), (273, 941177), (339, 757939), (791, 324831), (1469, 174909), (2373, 108277), (4407, 58303), (8329, 30849), (10283, 24987)]