17991369

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{5507}}^1$

素因数の和:5538

約数の個数: 24

約数和(自身を含む): 29302560

約数和(自身を除く): 11311191

約数列:

[1, 3, 9, 11, 27, 33, 99, 121, 297, 363, 1089, 3267, 5507, 16521, 49563, 60577, 148689, 181731, 545193, 666347, 1635579, 1999041, 5997123, 17991369]

約数ペア:

[(1, 17991369), (3, 5997123), (9, 1999041), (11, 1635579), (27, 666347), (33, 545193), (99, 181731), (121, 148689), (297, 60577), (363, 49563), (1089, 16521), (3267, 5507)]