81661581

素因数分解:

$3^3\times {\mathrm{193}}^1\times {\mathrm{15671}}^1$

素因数の和:15873

約数の個数: 16

約数和(自身を含む): 121614720

約数和(自身を除く): 39953139

約数列:

[1, 3, 9, 27, 193, 579, 1737, 5211, 15671, 47013, 141039, 423117, 3024503, 9073509, 27220527, 81661581]

約数ペア:

[(1, 81661581), (3, 27220527), (9, 9073509), (27, 3024503), (193, 423117), (579, 141039), (1737, 47013), (5211, 15671)]