81312309

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{13627}}^1$

素因数の和:13666

約数の個数: 32

約数和(自身を含む): 137370240

約数和(自身を除く): 56057931

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 351, 459, 663, 1989, 5967, 13627, 40881, 122643, 177151, 231659, 367929, 531453, 694977, 1594359, 2084931, 3011567, 4783077, 6254793, 9034701, 27104103, 81312309]

約数ペア:

[(1, 81312309), (3, 27104103), (9, 9034701), (13, 6254793), (17, 4783077), (27, 3011567), (39, 2084931), (51, 1594359), (117, 694977), (153, 531453), (221, 367929), (351, 231659), (459, 177151), (663, 122643), (1989, 40881), (5967, 13627)]