21298504

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20323}}^1$

素因数の和:20460

約数の個数: 16

約数和(自身を含む): 40241520

約数和(自身を除く): 18943016

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20323, 40646, 81292, 162584, 2662313, 5324626, 10649252, 21298504]

約数ペア:

[(1, 21298504), (2, 10649252), (4, 5324626), (8, 2662313), (131, 162584), (262, 81292), (524, 40646), (1048, 20323)]