18597985

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 26855424

約数和(自身を除く): 8257439

約数列:

[1, 5, 7, 31, 35, 61, 155, 217, 281, 305, 427, 1085, 1405, 1891, 1967, 2135, 8711, 9455, 9835, 13237, 17141, 43555, 60977, 66185, 85705, 119987, 304885, 531371, 599935, 2656855, 3719597, 18597985]

約数ペア:

[(1, 18597985), (5, 3719597), (7, 2656855), (31, 599935), (35, 531371), (61, 304885), (155, 119987), (217, 85705), (281, 66185), (305, 60977), (427, 43555), (1085, 17141), (1405, 13237), (1891, 9835), (1967, 9455), (2135, 8711)]