28575554

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{15581}}^1$

素因数の和:15721

約数の個数: 16

約数和(自身を含む): 49363776

約数和(自身を除く): 20788222

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 15581, 31162, 109067, 218134, 2041111, 4082222, 14287777, 28575554]

約数ペア:

[(1, 28575554), (2, 14287777), (7, 4082222), (14, 2041111), (131, 218134), (262, 109067), (917, 31162), (1834, 15581)]