28666521

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{81671}}^1$

素因数の和:81693

約数の個数: 16

約数和(自身を含む): 45736320

約数和(自身を除く): 17069799

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 81671, 245013, 735039, 1061723, 2205117, 3185169, 9555507, 28666521]

約数ペア:

[(1, 28666521), (3, 9555507), (9, 3185169), (13, 2205117), (27, 1061723), (39, 735039), (117, 245013), (351, 81671)]