21509128

素因数分解:

$2^3\times {\mathrm{463}}^1\times {\mathrm{5807}}^1$

素因数の和:6276

約数の個数: 16

約数和(自身を含む): 40423680

約数和(自身を除く): 18914552

約数列:

[1, 2, 4, 8, 463, 926, 1852, 3704, 5807, 11614, 23228, 46456, 2688641, 5377282, 10754564, 21509128]

約数ペア:

[(1, 21509128), (2, 10754564), (4, 5377282), (8, 2688641), (463, 46456), (926, 23228), (1852, 11614), (3704, 5807)]