21389006422

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{907}}^1\times {\mathrm{911}}^1$

素因数の和:1913

約数の個数: 48

約数和(自身を含む): 37622057472

約数和(自身を除く): 16233051050

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 907, 911, 1814, 1822, 1849, 3698, 6349, 6377, 12698, 12754, 12943, 25886, 39001, 39173, 78002, 78346, 273007, 274211, 546014, 548422, 826277, 1652554, 1677043, 1684439, 3354086, 3368878, 5783939, 11567878, 11739301, 11791073, 23478602, 23582146, 35529911, 71059822, 248709377, 497418754, 1527786173, 3055572346, 10694503211, 21389006422]

約数ペア:

[(1, 21389006422), (2, 10694503211), (7, 3055572346), (14, 1527786173), (43, 497418754), (86, 248709377), (301, 71059822), (602, 35529911), (907, 23582146), (911, 23478602), (1814, 11791073), (1822, 11739301), (1849, 11567878), (3698, 5783939), (6349, 3368878), (6377, 3354086), (12698, 1684439), (12754, 1677043), (12943, 1652554), (25886, 826277), (39001, 548422), (39173, 546014), (78002, 274211), (78346, 273007)]