201890297

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^2\times {\mathrm{337}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 245501568

約数和(自身を除く): 43611271

約数列:

[1, 7, 23, 61, 161, 337, 427, 1403, 2359, 3721, 7751, 9821, 20557, 26047, 54257, 85583, 143899, 472811, 599081, 1253977, 3309677, 8777839, 28841471, 201890297]

約数ペア:

[(1, 201890297), (7, 28841471), (23, 8777839), (61, 3309677), (161, 1253977), (337, 599081), (427, 472811), (1403, 143899), (2359, 85583), (3721, 54257), (7751, 26047), (9821, 20557)]