12820899

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6709}}^1$

素因数の和:6739

約数の個数: 24

約数和(自身を含む): 21418320

約数和(自身を除く): 8597421

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 6709, 20127, 46963, 87217, 140889, 261651, 328741, 610519, 986223, 1831557, 4273633, 12820899]

約数ペア:

[(1, 12820899), (3, 4273633), (7, 1831557), (13, 986223), (21, 610519), (39, 328741), (49, 261651), (91, 140889), (147, 87217), (273, 46963), (637, 20127), (1911, 6709)]