17950985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{997}}^1$

素因数の和:1292

約数の個数: 16

約数和(自身を含む): 23305296

約数和(自身を除く): 5354311

約数列:

[1, 5, 13, 65, 277, 997, 1385, 3601, 4985, 12961, 18005, 64805, 276169, 1380845, 3590197, 17950985]

約数ペア:

[(1, 17950985), (5, 3590197), (13, 1380845), (65, 276169), (277, 64805), (997, 18005), (1385, 12961), (3601, 4985)]