209920906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{218213}}^1$

素因数の和:218265

約数の個数: 16

約数和(自身を含む): 348269544

約数和(自身を除く): 138348638

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 218213, 436426, 2836769, 5673538, 8073881, 16147762, 104960453, 209920906]

約数ペア:

[(1, 209920906), (2, 104960453), (13, 16147762), (26, 8073881), (37, 5673538), (74, 2836769), (481, 436426), (962, 218213)]