201997689

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{641}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 295094016

約数和(自身を除く): 93096327

約数列:

[1, 3, 17, 37, 51, 111, 167, 501, 629, 641, 1887, 1923, 2839, 6179, 8517, 10897, 18537, 23717, 32691, 71151, 105043, 107047, 315129, 321141, 403189, 1209567, 1819799, 3960739, 5459397, 11882217, 67332563, 201997689]

約数ペア:

[(1, 201997689), (3, 67332563), (17, 11882217), (37, 5459397), (51, 3960739), (111, 1819799), (167, 1209567), (501, 403189), (629, 321141), (641, 315129), (1887, 107047), (1923, 105043), (2839, 71151), (6179, 32691), (8517, 23717), (10897, 18537)]