20376321

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{42187}}^1$

素因数の和:42220

約数の個数: 16

約数和(自身を含む): 32400384

約数和(自身を除く): 12024063

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 42187, 126561, 295309, 885927, 970301, 2910903, 6792107, 20376321]

約数ペア:

[(1, 20376321), (3, 6792107), (7, 2910903), (21, 970301), (23, 885927), (69, 295309), (161, 126561), (483, 42187)]