28131155

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1597}}^1$

素因数の和:1886

約数の個数: 16

約数和(自身を含む): 36511104

約数和(自身を除く): 8379949

約数列:

[1, 5, 13, 65, 271, 1355, 1597, 3523, 7985, 17615, 20761, 103805, 432787, 2163935, 5626231, 28131155]

約数ペア:

[(1, 28131155), (5, 5626231), (13, 2163935), (65, 432787), (271, 103805), (1355, 20761), (1597, 17615), (3523, 7985)]