18984885

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 31664640

約数和(自身を除く): 12679755

約数列:

[1, 3, 5, 15, 37, 79, 111, 185, 237, 395, 433, 555, 1185, 1299, 2165, 2923, 6495, 8769, 14615, 16021, 34207, 43845, 48063, 80105, 102621, 171035, 240315, 513105, 1265659, 3796977, 6328295, 18984885]

約数ペア:

[(1, 18984885), (3, 6328295), (5, 3796977), (15, 1265659), (37, 513105), (79, 240315), (111, 171035), (185, 102621), (237, 80105), (395, 48063), (433, 43845), (555, 34207), (1185, 16021), (1299, 14615), (2165, 8769), (2923, 6495)]