25731209

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{419}}^1$

素因数の和:740

約数の個数: 16

約数和(自身を含む): 30535680

約数和(自身を除く): 4804471

約数列:

[1, 7, 31, 217, 283, 419, 1981, 2933, 8773, 12989, 61411, 90923, 118577, 830039, 3675887, 25731209]

約数ペア:

[(1, 25731209), (7, 3675887), (31, 830039), (217, 118577), (283, 90923), (419, 61411), (1981, 12989), (2933, 8773)]