20078018

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{2971}}^1$

素因数の和:3113

約数の個数: 16

約数和(自身を含む): 31384320

約数和(自身を除く): 11306302

約数列:

[1, 2, 31, 62, 109, 218, 2971, 3379, 5942, 6758, 92101, 184202, 323839, 647678, 10039009, 20078018]

約数ペア:

[(1, 20078018), (2, 10039009), (31, 647678), (62, 323839), (109, 184202), (218, 92101), (2971, 6758), (3379, 5942)]