12885723

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{619}}^1$

素因数の和:888

約数の個数: 20

約数和(自身を含む): 19355160

約数和(自身を除く): 6469437

約数列:

[1, 3, 9, 27, 81, 257, 619, 771, 1857, 2313, 5571, 6939, 16713, 20817, 50139, 159083, 477249, 1431747, 4295241, 12885723]

約数ペア:

[(1, 12885723), (3, 4295241), (9, 1431747), (27, 477249), (81, 159083), (257, 50139), (619, 20817), (771, 16713), (1857, 6939), (2313, 5571)]