19420863

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{7643}}^1$

素因数の和:7675

約数の個数: 24

約数和(自身を含む): 32532864

約数和(自身を除く): 13112001

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 7643, 22929, 53501, 84073, 160503, 252219, 588511, 924803, 1765533, 2774409, 6473621, 19420863]

約数ペア:

[(1, 19420863), (3, 6473621), (7, 2774409), (11, 1765533), (21, 924803), (33, 588511), (77, 252219), (121, 160503), (231, 84073), (363, 53501), (847, 22929), (2541, 7643)]