21296810

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23929}}^1$

素因数の和:24025

約数の個数: 16

約数和(自身を含む): 38766600

約数和(自身を除く): 17469790

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23929, 47858, 119645, 239290, 2129681, 4259362, 10648405, 21296810]

約数ペア:

[(1, 21296810), (2, 10648405), (5, 4259362), (10, 2129681), (89, 239290), (178, 119645), (445, 47858), (890, 23929)]