2789409

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6991}}^1$

素因数の和:7020

約数の個数: 16

約数和(自身を含む): 4474880

約数和(自身を除く): 1685471

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 6991, 20973, 48937, 132829, 146811, 398487, 929803, 2789409]

約数ペア:

[(1, 2789409), (3, 929803), (7, 398487), (19, 146811), (21, 132829), (57, 48937), (133, 20973), (399, 6991)]