21926285

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{521}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 27812160

約数和(自身を除く): 5885875

約数列:

[1, 5, 19, 95, 443, 521, 2215, 2605, 8417, 9899, 42085, 49495, 230803, 1154015, 4385257, 21926285]

約数ペア:

[(1, 21926285), (5, 4385257), (19, 1154015), (95, 230803), (443, 49495), (521, 42085), (2215, 9899), (2605, 8417)]