28282989

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 44706816

約数和(自身を除く): 16423827

約数列:

[1, 3, 7, 21, 41, 107, 123, 287, 307, 321, 749, 861, 921, 2149, 2247, 4387, 6447, 12587, 13161, 30709, 32849, 37761, 88109, 92127, 98547, 229943, 264327, 689829, 1346809, 4040427, 9427663, 28282989]

約数ペア:

[(1, 28282989), (3, 9427663), (7, 4040427), (21, 1346809), (41, 689829), (107, 264327), (123, 229943), (287, 98547), (307, 92127), (321, 88109), (749, 37761), (861, 32849), (921, 30709), (2149, 13161), (2247, 12587), (4387, 6447)]