18538075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{823}}^1$

素因数の和:903

約数の個数: 24

約数和(自身を含む): 24828768

約数和(自身を除く): 6290693

約数列:

[1, 5, 17, 25, 53, 85, 265, 425, 823, 901, 1325, 4115, 4505, 13991, 20575, 22525, 43619, 69955, 218095, 349775, 741523, 1090475, 3707615, 18538075]

約数ペア:

[(1, 18538075), (5, 3707615), (17, 1090475), (25, 741523), (53, 349775), (85, 218095), (265, 69955), (425, 43619), (823, 22525), (901, 20575), (1325, 13991), (4115, 4505)]