18289887

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{11311}}^1$

素因数の和:11339

約数の個数: 24

約数和(自身を含む): 30949632

約数和(自身を除く): 12659745

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 11311, 33933, 79177, 124421, 237531, 373263, 554239, 870947, 1662717, 2612841, 6096629, 18289887]

約数ペア:

[(1, 18289887), (3, 6096629), (7, 2612841), (11, 1662717), (21, 870947), (33, 554239), (49, 373263), (77, 237531), (147, 124421), (231, 79177), (539, 33933), (1617, 11311)]