21440738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42373}}^1$

素因数の和:42409

約数の個数: 16

約数和(自身を含む): 36611136

約数和(自身を除く): 15170398

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42373, 84746, 466103, 932206, 974579, 1949158, 10720369, 21440738]

約数ペア:

[(1, 21440738), (2, 10720369), (11, 1949158), (22, 974579), (23, 932206), (46, 466103), (253, 84746), (506, 42373)]