20725117

素因数分解:

$7^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 24216192

約数和(自身を除く): 3491075

約数列:

[1, 7, 97, 131, 233, 679, 917, 1631, 12707, 22601, 30523, 88949, 158207, 213661, 2960731, 20725117]

約数ペア:

[(1, 20725117), (7, 2960731), (97, 213661), (131, 158207), (233, 88949), (679, 30523), (917, 22601), (1631, 12707)]