20992205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7877}}^1$

素因数の和:7936

約数の個数: 16

約数和(自身を含む): 27793584

約数和(自身を除く): 6801379

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7877, 39385, 102401, 322957, 512005, 1614785, 4198441, 20992205]

約数ペア:

[(1, 20992205), (5, 4198441), (13, 1614785), (41, 512005), (65, 322957), (205, 102401), (533, 39385), (2665, 7877)]