20511258

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{743}}^1$

素因数の和:898

約数の個数: 32

約数和(自身を含む): 42425856

約数和(自身を除く): 21914598

約数列:

[1, 2, 3, 6, 43, 86, 107, 129, 214, 258, 321, 642, 743, 1486, 2229, 4458, 4601, 9202, 13803, 27606, 31949, 63898, 79501, 95847, 159002, 191694, 238503, 477006, 3418543, 6837086, 10255629, 20511258]

約数ペア:

[(1, 20511258), (2, 10255629), (3, 6837086), (6, 3418543), (43, 477006), (86, 238503), (107, 191694), (129, 159002), (214, 95847), (258, 79501), (321, 63898), (642, 31949), (743, 27606), (1486, 13803), (2229, 9202), (4458, 4601)]