16564743

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{15731}}^1$

素因数の和:15756

約数の個数: 20

約数和(自身を含む): 26650008

約数和(自身を除く): 10085265

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 15731, 47193, 141579, 204503, 424737, 613509, 1274211, 1840527, 5521581, 16564743]

約数ペア:

[(1, 16564743), (3, 5521581), (9, 1840527), (13, 1274211), (27, 613509), (39, 424737), (81, 204503), (117, 141579), (351, 47193), (1053, 15731)]