19418004

素因数分解:

$2^2\times 3^2\times {\mathrm{539389}}^1$

素因数の和:539399

約数の個数: 18

約数和(自身を含む): 49084490

約数和(自身を除く): 29666486

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 539389, 1078778, 1618167, 2157556, 3236334, 4854501, 6472668, 9709002, 19418004]

約数ペア:

[(1, 19418004), (2, 9709002), (3, 6472668), (4, 4854501), (6, 3236334), (9, 2157556), (12, 1618167), (18, 1078778), (36, 539389)]