21998004

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{261881}}^1$

素因数の和:261895

約数の個数: 24

約数和(自身を含む): 58661568

約数和(自身を除く): 36663564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 261881, 523762, 785643, 1047524, 1571286, 1833167, 3142572, 3666334, 5499501, 7332668, 10999002, 21998004]

約数ペア:

[(1, 21998004), (2, 10999002), (3, 7332668), (4, 5499501), (6, 3666334), (7, 3142572), (12, 1833167), (14, 1571286), (21, 1047524), (28, 785643), (42, 523762), (84, 261881)]