12980805

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21107}}^1$

素因数の和:21156

約数の個数: 16

約数和(自身を含む): 21276864

約数和(自身を除く): 8296059

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 21107, 63321, 105535, 316605, 865387, 2596161, 4326935, 12980805]

約数ペア:

[(1, 12980805), (3, 4326935), (5, 2596161), (15, 865387), (41, 316605), (123, 105535), (205, 63321), (615, 21107)]