21078642

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{270239}}^1$

素因数の和:270257

約数の個数: 16

約数和(自身を含む): 45400320

約数和(自身を除く): 24321678

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 270239, 540478, 810717, 1621434, 3513107, 7026214, 10539321, 21078642]

約数ペア:

[(1, 21078642), (2, 10539321), (3, 7026214), (6, 3513107), (13, 1621434), (26, 810717), (39, 540478), (78, 270239)]