19397391

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1721}}^1$

素因数の和:1771

約数の個数: 24

約数和(自身を含む): 29604624

約数和(自身を除く): 10207233

約数列:

[1, 3, 13, 17, 39, 51, 221, 289, 663, 867, 1721, 3757, 5163, 11271, 22373, 29257, 67119, 87771, 380341, 497369, 1141023, 1492107, 6465797, 19397391]

約数ペア:

[(1, 19397391), (3, 6465797), (13, 1492107), (17, 1141023), (39, 497369), (51, 380341), (221, 87771), (289, 67119), (663, 29257), (867, 22373), (1721, 11271), (3757, 5163)]