21000496951

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{1117}}^1\times {\mathrm{40087}}^1$

素因数の和:41278

約数の個数: 16

約数和(自身を含む): 24381200896

約数和(自身を除く): 3380703945

約数列:

[1, 7, 67, 469, 1117, 7819, 40087, 74839, 280609, 523873, 2685829, 18800803, 44777179, 313440253, 3000070993, 21000496951]

約数ペア:

[(1, 21000496951), (7, 3000070993), (67, 313440253), (469, 44777179), (1117, 18800803), (7819, 2685829), (40087, 523873), (74839, 280609)]