25783011

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 38155104

約数和(自身を除く): 12372093

約数列:

[1, 3, 9, 71, 157, 213, 257, 471, 639, 771, 1413, 2313, 11147, 18247, 33441, 40349, 54741, 100323, 121047, 164223, 363141, 2864779, 8594337, 25783011]

約数ペア:

[(1, 25783011), (3, 8594337), (9, 2864779), (71, 363141), (157, 164223), (213, 121047), (257, 100323), (471, 54741), (639, 40349), (771, 33441), (1413, 18247), (2313, 11147)]