2777439

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6961}}^1$

素因数の和:6990

約数の個数: 16

約数和(自身を含む): 4455680

約数和(自身を除く): 1678241

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 6961, 20883, 48727, 132259, 146181, 396777, 925813, 2777439]

約数ペア:

[(1, 2777439), (3, 925813), (7, 396777), (19, 146181), (21, 132259), (57, 48727), (133, 20883), (399, 6961)]