2561751

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 3968640

約数和(自身を除く): 1406889

約数列:

[1, 3, 9, 19, 57, 71, 171, 211, 213, 633, 639, 1349, 1899, 4009, 4047, 12027, 12141, 14981, 36081, 44943, 134829, 284639, 853917, 2561751]

約数ペア:

[(1, 2561751), (3, 853917), (9, 284639), (19, 134829), (57, 44943), (71, 36081), (171, 14981), (211, 12141), (213, 12027), (633, 4047), (639, 4009), (1349, 1899)]