20493486

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:327

約数の個数: 80

約数和(自身を含む): 50982624

約数和(自身を除く): 30489138

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 37, 39, 54, 74, 78, 81, 111, 117, 162, 222, 234, 263, 333, 351, 481, 526, 666, 702, 789, 962, 999, 1053, 1443, 1578, 1998, 2106, 2367, 2886, 2997, 3419, 4329, 4734, 5994, 6838, 7101, 8658, 9731, 10257, 12987, 14202, 19462, 20514, 21303, 25974, 29193, 30771, 38961, 42606, 58386, 61542, 77922, 87579, 92313, 126503, 175158, 184626, 253006, 262737, 276939, 379509, 525474, 553878, 759018, 788211, 1138527, 1576422, 2277054, 3415581, 6831162, 10246743, 20493486]

約数ペア:

[(1, 20493486), (2, 10246743), (3, 6831162), (6, 3415581), (9, 2277054), (13, 1576422), (18, 1138527), (26, 788211), (27, 759018), (37, 553878), (39, 525474), (54, 379509), (74, 276939), (78, 262737), (81, 253006), (111, 184626), (117, 175158), (162, 126503), (222, 92313), (234, 87579), (263, 77922), (333, 61542), (351, 58386), (481, 42606), (526, 38961), (666, 30771), (702, 29193), (789, 25974), (962, 21303), (999, 20514), (1053, 19462), (1443, 14202), (1578, 12987), (1998, 10257), (2106, 9731), (2367, 8658), (2886, 7101), (2997, 6838), (3419, 5994), (4329, 4734)]