18491697

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7159}}^1$

素因数の和:7213

約数の個数: 24

約数和(自身を含む): 31274880

約数和(自身を除く): 12783183

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 7159, 21477, 50113, 64431, 150339, 293519, 451017, 880557, 2054633, 2641671, 6163899, 18491697]

約数ペア:

[(1, 18491697), (3, 6163899), (7, 2641671), (9, 2054633), (21, 880557), (41, 451017), (63, 293519), (123, 150339), (287, 64431), (369, 50113), (861, 21477), (2583, 7159)]