19865495

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2333}}^1$

素因数の和:2482

約数の個数: 16

約数和(自身を含む): 25879392

約数和(自身を除く): 6013897

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2333, 8515, 11665, 30329, 151645, 305623, 1528115, 3973099, 19865495]

約数ペア:

[(1, 19865495), (5, 3973099), (13, 1528115), (65, 305623), (131, 151645), (655, 30329), (1703, 11665), (2333, 8515)]