19988085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{102503}}^1$

素因数の和:102524

約数の個数: 16

約数和(自身を含む): 34441344

約数和(自身を除く): 14453259

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 102503, 307509, 512515, 1332539, 1537545, 3997617, 6662695, 19988085]

約数ペア:

[(1, 19988085), (3, 6662695), (5, 3997617), (13, 1537545), (15, 1332539), (39, 512515), (65, 307509), (195, 102503)]