28171281

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 13300719

約数列:

[1, 3, 19, 31, 57, 93, 107, 149, 321, 447, 589, 1767, 2033, 2831, 3317, 4619, 6099, 8493, 9951, 13857, 15943, 47829, 63023, 87761, 189069, 263283, 302917, 494233, 908751, 1482699, 9390427, 28171281]

約数ペア:

[(1, 28171281), (3, 9390427), (19, 1482699), (31, 908751), (57, 494233), (93, 302917), (107, 263283), (149, 189069), (321, 87761), (447, 63023), (589, 47829), (1767, 15943), (2033, 13857), (2831, 9951), (3317, 8493), (4619, 6099)]