18985684

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{66851}}^1$

素因数の和:66926

約数の個数: 12

約数和(自身を含む): 33693408

約数和(自身を除く): 14707724

約数列:

[1, 2, 4, 71, 142, 284, 66851, 133702, 267404, 4746421, 9492842, 18985684]

約数ペア:

[(1, 18985684), (2, 9492842), (4, 4746421), (71, 267404), (142, 133702), (284, 66851)]