17987661

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2843}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 28098720

約数和(自身を除く): 10111059

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 2843, 6327, 8529, 25587, 54017, 105191, 162051, 315573, 486153, 946719, 1998629, 5995887, 17987661]

約数ペア:

[(1, 17987661), (3, 5995887), (9, 1998629), (19, 946719), (37, 486153), (57, 315573), (111, 162051), (171, 105191), (333, 54017), (703, 25587), (2109, 8529), (2843, 6327)]