18430821

素因数分解:

$3^5\times {\mathrm{73}}^1\times {\mathrm{1039}}^1$

素因数の和:1127

約数の個数: 24

約数和(自身を含む): 28013440

約数和(自身を除く): 9582619

約数列:

[1, 3, 9, 27, 73, 81, 219, 243, 657, 1039, 1971, 3117, 5913, 9351, 17739, 28053, 75847, 84159, 227541, 252477, 682623, 2047869, 6143607, 18430821]

約数ペア:

[(1, 18430821), (3, 6143607), (9, 2047869), (27, 682623), (73, 252477), (81, 227541), (219, 84159), (243, 75847), (657, 28053), (1039, 17739), (1971, 9351), (3117, 5913)]