208177921

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{3407}}^1$

素因数の和:3493

約数の個数: 24

約数和(自身を含む): 256417920

約数和(自身を除く): 48239999

約数列:

[1, 7, 29, 43, 49, 203, 301, 1247, 1421, 2107, 3407, 8729, 23849, 61103, 98803, 146501, 166943, 691621, 1025507, 4248529, 4841347, 7178549, 29739703, 208177921]

約数ペア:

[(1, 208177921), (7, 29739703), (29, 7178549), (43, 4841347), (49, 4248529), (203, 1025507), (301, 691621), (1247, 166943), (1421, 146501), (2107, 98803), (3407, 61103), (8729, 23849)]