19994988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{128173}}^1$

素因数の和:128193

約数の個数: 24

約数和(自身を含む): 50244208

約数和(自身を除く): 30249220

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 128173, 256346, 384519, 512692, 769038, 1538076, 1666249, 3332498, 4998747, 6664996, 9997494, 19994988]

約数ペア:

[(1, 19994988), (2, 9997494), (3, 6664996), (4, 4998747), (6, 3332498), (12, 1666249), (13, 1538076), (26, 769038), (39, 512692), (52, 384519), (78, 256346), (156, 128173)]