18711411

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{821}}^1$

素因数の和:1002

約数の個数: 16

約数和(自身を含む): 25567488

約数和(自身を除く): 6856077

約数列:

[1, 3, 71, 107, 213, 321, 821, 2463, 7597, 22791, 58291, 87847, 174873, 263541, 6237137, 18711411]

約数ペア:

[(1, 18711411), (3, 6237137), (71, 263541), (107, 174873), (213, 87847), (321, 58291), (821, 22791), (2463, 7597)]