12981405

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27917}}^1$

素因数の和:27956

約数の個数: 16

約数和(自身を含む): 21441024

約数和(自身を除く): 8459619

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 27917, 83751, 139585, 418755, 865427, 2596281, 4327135, 12981405]

約数ペア:

[(1, 12981405), (3, 4327135), (5, 2596281), (15, 865427), (31, 418755), (93, 139585), (155, 83751), (465, 27917)]