19211315

素因数分解:

$5^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 23522400

約数和(自身を除く): 4311085

約数列:

[1, 5, 107, 149, 241, 535, 745, 1205, 15943, 25787, 35909, 79715, 128935, 179545, 3842263, 19211315]

約数ペア:

[(1, 19211315), (5, 3842263), (107, 179545), (149, 128935), (241, 79715), (535, 35909), (745, 25787), (1205, 15943)]