20538414

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1721}}^1$

素因数の和:1762

約数の個数: 64

約数和(自身を含む): 52073280

約数和(自身を除く): 31534866

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 102, 117, 153, 221, 234, 306, 351, 442, 459, 663, 702, 918, 1326, 1721, 1989, 3442, 3978, 5163, 5967, 10326, 11934, 15489, 22373, 29257, 30978, 44746, 46467, 58514, 67119, 87771, 92934, 134238, 175542, 201357, 263313, 380341, 402714, 526626, 604071, 760682, 789939, 1141023, 1208142, 1579878, 2282046, 3423069, 6846138, 10269207, 20538414]

約数ペア:

[(1, 20538414), (2, 10269207), (3, 6846138), (6, 3423069), (9, 2282046), (13, 1579878), (17, 1208142), (18, 1141023), (26, 789939), (27, 760682), (34, 604071), (39, 526626), (51, 402714), (54, 380341), (78, 263313), (102, 201357), (117, 175542), (153, 134238), (221, 92934), (234, 87771), (306, 67119), (351, 58514), (442, 46467), (459, 44746), (663, 30978), (702, 29257), (918, 22373), (1326, 15489), (1721, 11934), (1989, 10326), (3442, 5967), (3978, 5163)]