21403918

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:2004

約数の個数: 24

約数和(自身を含む): 35919000

約数和(自身を除く): 14515082

約数列:

[1, 2, 17, 19, 34, 38, 289, 323, 578, 646, 1949, 3898, 5491, 10982, 33133, 37031, 66266, 74062, 563261, 629527, 1126522, 1259054, 10701959, 21403918]

約数ペア:

[(1, 21403918), (2, 10701959), (17, 1259054), (19, 1126522), (34, 629527), (38, 563261), (289, 74062), (323, 66266), (578, 37031), (646, 33133), (1949, 10982), (3898, 5491)]