28171759

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{643}}^1$

素因数の和:1230

約数の個数: 16

約数和(自身を含む): 35239680

約数和(自身を除く): 7067921

約数列:

[1, 7, 11, 77, 569, 643, 3983, 4501, 6259, 7073, 43813, 49511, 365867, 2561069, 4024537, 28171759]

約数ペア:

[(1, 28171759), (7, 4024537), (11, 2561069), (77, 365867), (569, 49511), (643, 43813), (3983, 7073), (4501, 6259)]