1668429

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 2800512

約数和(自身を除く): 1132083

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 373, 497, 639, 1119, 1491, 2611, 3357, 4473, 7833, 23499, 26483, 79449, 185381, 238347, 556143, 1668429]

約数ペア:

[(1, 1668429), (3, 556143), (7, 238347), (9, 185381), (21, 79449), (63, 26483), (71, 23499), (213, 7833), (373, 4473), (497, 3357), (639, 2611), (1119, 1491)]