20307441

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{87911}}^1$

素因数の和:87932

約数の個数: 16

約数和(自身を含む): 33758208

約数和(自身を除く): 13450767

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 87911, 263733, 615377, 967021, 1846131, 2901063, 6769147, 20307441]

約数ペア:

[(1, 20307441), (3, 6769147), (7, 2901063), (11, 1846131), (21, 967021), (33, 615377), (77, 263733), (231, 87911)]