15987363

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5477}}^1$

素因数の和:5626

約数の個数: 16

約数和(自身を含む): 24541440

約数和(自身を除く): 8554077

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 5477, 16431, 38339, 115017, 761303, 2283909, 5329121, 15987363]

約数ペア:

[(1, 15987363), (3, 5329121), (7, 2283909), (21, 761303), (139, 115017), (417, 38339), (973, 16431), (2919, 5477)]