2639457

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 4088448

約数和(自身を除く): 1448991

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 311, 369, 933, 943, 2799, 2829, 7153, 8487, 12751, 21459, 38253, 64377, 114759, 293273, 879819, 2639457]

約数ペア:

[(1, 2639457), (3, 879819), (9, 293273), (23, 114759), (41, 64377), (69, 38253), (123, 21459), (207, 12751), (311, 8487), (369, 7153), (933, 2829), (943, 2799)]