81784878

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1947259}}^1$

素因数の和:1947271

約数の個数: 16

約数和(自身を含む): 186936960

約数和(自身を除く): 105152082

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1947259, 3894518, 5841777, 11683554, 13630813, 27261626, 40892439, 81784878]

約数ペア:

[(1, 81784878), (2, 40892439), (3, 27261626), (6, 13630813), (7, 11683554), (14, 5841777), (21, 3894518), (42, 1947259)]