21030530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{383}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 42439680

約数和(自身を除く): 21409150

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 289, 323, 383, 578, 646, 766, 1445, 1615, 1915, 2890, 3230, 3830, 5491, 6511, 7277, 10982, 13022, 14554, 27455, 32555, 36385, 54910, 65110, 72770, 110687, 123709, 221374, 247418, 553435, 618545, 1106870, 1237090, 2103053, 4206106, 10515265, 21030530]

約数ペア:

[(1, 21030530), (2, 10515265), (5, 4206106), (10, 2103053), (17, 1237090), (19, 1106870), (34, 618545), (38, 553435), (85, 247418), (95, 221374), (170, 123709), (190, 110687), (289, 72770), (323, 65110), (383, 54910), (578, 36385), (646, 32555), (766, 27455), (1445, 14554), (1615, 13022), (1915, 10982), (2890, 7277), (3230, 6511), (3830, 5491)]