28884947

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{113}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 36554784

約数和(自身を除く): 7669837

約数列:

[1, 7, 13, 53, 91, 113, 371, 689, 791, 1469, 2809, 4823, 5989, 10283, 19663, 36517, 41923, 77857, 255619, 317417, 544999, 2221919, 4126421, 28884947]

約数ペア:

[(1, 28884947), (7, 4126421), (13, 2221919), (53, 544999), (91, 317417), (113, 255619), (371, 77857), (689, 41923), (791, 36517), (1469, 19663), (2809, 10283), (4823, 5989)]