21499548

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{255947}}^1$

素因数の和:255961

約数の個数: 24

約数和(自身を含む): 57332352

約数和(自身を除く): 35832804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 255947, 511894, 767841, 1023788, 1535682, 1791629, 3071364, 3583258, 5374887, 7166516, 10749774, 21499548]

約数ペア:

[(1, 21499548), (2, 10749774), (3, 7166516), (4, 5374887), (6, 3583258), (7, 3071364), (12, 1791629), (14, 1535682), (21, 1023788), (28, 767841), (42, 511894), (84, 255947)]