205728621

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1777}}^1$

素因数の和:1973

約数の個数: 32

約数和(自身を含む): 324307200

約数和(自身を除く): 118578579

約数列:

[1, 3, 7, 21, 37, 111, 149, 259, 447, 777, 1043, 1777, 3129, 5331, 5513, 12439, 16539, 37317, 38591, 65749, 115773, 197247, 264773, 460243, 794319, 1380729, 1853411, 5560233, 9796601, 29389803, 68576207, 205728621]

約数ペア:

[(1, 205728621), (3, 68576207), (7, 29389803), (21, 9796601), (37, 5560233), (111, 1853411), (149, 1380729), (259, 794319), (447, 460243), (777, 264773), (1043, 197247), (1777, 115773), (3129, 65749), (5331, 38591), (5513, 37317), (12439, 16539)]