20909806

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{1811}}^1$

素因数の和:2087

約数の個数: 16

約数和(自身を含む): 32876928

約数和(自身を除く): 11967122

約数列:

[1, 2, 23, 46, 251, 502, 1811, 3622, 5773, 11546, 41653, 83306, 454561, 909122, 10454903, 20909806]

約数ペア:

[(1, 20909806), (2, 10454903), (23, 909122), (46, 454561), (251, 83306), (502, 41653), (1811, 11546), (3622, 5773)]