25712781

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 11784819

約数列:

[1, 3, 23, 41, 61, 69, 123, 149, 183, 447, 943, 1403, 2501, 2829, 3427, 4209, 6109, 7503, 9089, 10281, 18327, 27267, 57523, 140507, 172569, 209047, 372649, 421521, 627141, 1117947, 8570927, 25712781]

約数ペア:

[(1, 25712781), (3, 8570927), (23, 1117947), (41, 627141), (61, 421521), (69, 372649), (123, 209047), (149, 172569), (183, 140507), (447, 57523), (943, 27267), (1403, 18327), (2501, 10281), (2829, 9089), (3427, 7503), (4209, 6109)]