2781429

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6971}}^1$

素因数の和:7000

約数の個数: 16

約数和(自身を含む): 4462080

約数和(自身を除く): 1680651

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 6971, 20913, 48797, 132449, 146391, 397347, 927143, 2781429]

約数ペア:

[(1, 2781429), (3, 927143), (7, 397347), (19, 146391), (21, 132449), (57, 48797), (133, 20913), (399, 6971)]