21577206

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1999}}^1$

素因数の和:2268

約数の個数: 32

約数和(自身を含む): 49536000

約数和(自身を除く): 27958794

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 257, 514, 771, 1542, 1799, 1999, 3598, 3998, 5397, 5997, 10794, 11994, 13993, 27986, 41979, 83958, 513743, 1027486, 1541229, 3082458, 3596201, 7192402, 10788603, 21577206]

約数ペア:

[(1, 21577206), (2, 10788603), (3, 7192402), (6, 3596201), (7, 3082458), (14, 1541229), (21, 1027486), (42, 513743), (257, 83958), (514, 41979), (771, 27986), (1542, 13993), (1799, 11994), (1999, 10794), (3598, 5997), (3998, 5397)]