18921345

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{11789}}^1$

素因数の和:11904

約数の個数: 16

約数和(自身を含む): 30559680

約数和(自身を除く): 11638335

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 11789, 35367, 58945, 176835, 1261423, 3784269, 6307115, 18921345]

約数ペア:

[(1, 18921345), (3, 6307115), (5, 3784269), (15, 1261423), (107, 176835), (321, 58945), (535, 35367), (1605, 11789)]