20512472994

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{789731}}^1$

素因数の和:789792

約数の個数: 64

約数和(自身を含む): 50416490880

約数和(自身を除く): 29904017886

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 37, 39, 54, 74, 78, 111, 117, 222, 234, 333, 351, 481, 666, 702, 962, 999, 1443, 1998, 2886, 4329, 8658, 12987, 25974, 789731, 1579462, 2369193, 4738386, 7107579, 10266503, 14215158, 20533006, 21322737, 29220047, 30799509, 42645474, 58440094, 61599018, 87660141, 92398527, 175320282, 184797054, 262980423, 277195581, 379860611, 525960846, 554391162, 759721222, 788941269, 1139581833, 1577882538, 2279163666, 3418745499, 6837490998, 10256236497, 20512472994]

約数ペア:

[(1, 20512472994), (2, 10256236497), (3, 6837490998), (6, 3418745499), (9, 2279163666), (13, 1577882538), (18, 1139581833), (26, 788941269), (27, 759721222), (37, 554391162), (39, 525960846), (54, 379860611), (74, 277195581), (78, 262980423), (111, 184797054), (117, 175320282), (222, 92398527), (234, 87660141), (333, 61599018), (351, 58440094), (481, 42645474), (666, 30799509), (702, 29220047), (962, 21322737), (999, 20533006), (1443, 14215158), (1998, 10266503), (2886, 7107579), (4329, 4738386), (8658, 2369193), (12987, 1579462), (25974, 789731)]