20439255

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9803}}^1$

素因数の和:9950

約数の個数: 16

約数和(自身を含む): 32941440

約数和(自身を除く): 12502185

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 9803, 29409, 49015, 147045, 1362617, 4087851, 6813085, 20439255]

約数ペア:

[(1, 20439255), (3, 6813085), (5, 4087851), (15, 1362617), (139, 147045), (417, 49015), (695, 29409), (2085, 9803)]