18340407

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2161}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 28330848

約数和(自身を除く): 9990441

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 2161, 2829, 6483, 8487, 19449, 49703, 88601, 149109, 265803, 447327, 797409, 2037823, 6113469, 18340407]

約数ペア:

[(1, 18340407), (3, 6113469), (9, 2037823), (23, 797409), (41, 447327), (69, 265803), (123, 149109), (207, 88601), (369, 49703), (943, 19449), (2161, 8487), (2829, 6483)]