19681677

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{4643}}^1$

素因数の和:4809

約数の個数: 16

約数和(自身を含む): 29350080

約数和(自身を除く): 9668403

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 4643, 13929, 41787, 125361, 728951, 2186853, 6560559, 19681677]

約数ペア:

[(1, 19681677), (3, 6560559), (9, 2186853), (27, 728951), (157, 125361), (471, 41787), (1413, 13929), (4239, 4643)]