39198278

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20143}}^1$

素因数の和:20291

約数の個数: 16

約数和(自身を含む): 67683840

約数和(自身を除く): 28485562

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 20143, 40286, 141001, 282002, 2799877, 5599754, 19599139, 39198278]

約数ペア:

[(1, 39198278), (2, 19599139), (7, 5599754), (14, 2799877), (139, 282002), (278, 141001), (973, 40286), (1946, 20143)]