18115153

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 22063104

約数和(自身を除く): 3947951

約数列:

[1, 7, 41, 49, 71, 127, 287, 497, 889, 2009, 2911, 3479, 5207, 6223, 9017, 20377, 36449, 63119, 142639, 255143, 369697, 441833, 2587879, 18115153]

約数ペア:

[(1, 18115153), (7, 2587879), (41, 441833), (49, 369697), (71, 255143), (127, 142639), (287, 63119), (497, 36449), (889, 20377), (2009, 9017), (2911, 6223), (3479, 5207)]