253915053

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{2351}}^1$

素因数の和:2537

約数の個数: 32

約数和(自身を含む): 400404480

約数和(自身を除く): 146489427

約数列:

[1, 3, 7, 21, 37, 111, 139, 259, 417, 777, 973, 2351, 2919, 5143, 7053, 15429, 16457, 36001, 49371, 86987, 108003, 260961, 326789, 608909, 980367, 1826727, 2287523, 6862569, 12091193, 36273579, 84638351, 253915053]

約数ペア:

[(1, 253915053), (3, 84638351), (7, 36273579), (21, 12091193), (37, 6862569), (111, 2287523), (139, 1826727), (259, 980367), (417, 608909), (777, 326789), (973, 260961), (2351, 108003), (2919, 86987), (5143, 49371), (7053, 36001), (15429, 16457)]