19986549

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{16369}}^1$

素因数の和:16420

約数の個数: 16

約数和(自身を含む): 29858880

約数和(自身を除く): 9872331

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 16369, 49107, 180059, 540177, 605653, 1816959, 6662183, 19986549]

約数ペア:

[(1, 19986549), (3, 6662183), (11, 1816959), (33, 605653), (37, 540177), (111, 180059), (407, 49107), (1221, 16369)]