19927179

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{937}}^1$

素因数の和:1099

約数の個数: 24

約数和(自身を含む): 30728880

約数和(自身を除く): 10801701

約数列:

[1, 3, 9, 17, 51, 139, 153, 417, 937, 1251, 2363, 2811, 7089, 8433, 15929, 21267, 47787, 130243, 143361, 390729, 1172187, 2214131, 6642393, 19927179]

約数ペア:

[(1, 19927179), (3, 6642393), (9, 2214131), (17, 1172187), (51, 390729), (139, 143361), (153, 130243), (417, 47787), (937, 21267), (1251, 15929), (2363, 8433), (2811, 7089)]