20207957

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 26659584

約数和(自身を除く): 6451627

約数列:

[1, 7, 11, 37, 41, 77, 173, 259, 287, 407, 451, 1211, 1517, 1903, 2849, 3157, 6401, 7093, 10619, 13321, 16687, 44807, 49651, 70411, 78023, 116809, 262441, 492877, 546161, 1837087, 2886851, 20207957]

約数ペア:

[(1, 20207957), (7, 2886851), (11, 1837087), (37, 546161), (41, 492877), (77, 262441), (173, 116809), (259, 78023), (287, 70411), (407, 49651), (451, 44807), (1211, 16687), (1517, 13321), (1903, 10619), (2849, 7093), (3157, 6401)]