19992804

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{128159}}^1$

素因数の和:128179

約数の個数: 24

約数和(自身を含む): 50238720

約数和(自身を除く): 30245916

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 128159, 256318, 384477, 512636, 768954, 1537908, 1666067, 3332134, 4998201, 6664268, 9996402, 19992804]

約数ペア:

[(1, 19992804), (2, 9996402), (3, 6664268), (4, 4998201), (6, 3332134), (12, 1666067), (13, 1537908), (26, 768954), (39, 512636), (52, 384477), (78, 256318), (156, 128159)]