28778253

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{23227}}^1$

素因数の和:23296

約数の個数: 16

約数和(自身を含む): 44597760

約数和(自身を除く): 15819507

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 23227, 69681, 162589, 487767, 1370393, 4111179, 9592751, 28778253]

約数ペア:

[(1, 28778253), (3, 9592751), (7, 4111179), (21, 1370393), (59, 487767), (177, 162589), (413, 69681), (1239, 23227)]