20176715538

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{53}}^2\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:753

約数の個数: 144

約数和(自身を含む): 51487275840

約数和(自身を除く): 31310560302

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 53, 63, 106, 109, 126, 159, 218, 318, 327, 371, 477, 523, 654, 742, 763, 954, 981, 1046, 1113, 1526, 1569, 1962, 2226, 2289, 2809, 3138, 3339, 3661, 4578, 4707, 5618, 5777, 6678, 6867, 7322, 8427, 9414, 10983, 11554, 13734, 16854, 17331, 19663, 21966, 25281, 27719, 32949, 34662, 39326, 40439, 50562, 51993, 55438, 57007, 58989, 65898, 80878, 83157, 103986, 114014, 117978, 121317, 166314, 171021, 176967, 194033, 242634, 249471, 306181, 342042, 353934, 363951, 388066, 399049, 498942, 513063, 582099, 612362, 727902, 798098, 918543, 1026126, 1164198, 1197147, 1469107, 1746297, 1837086, 2143267, 2394294, 2755629, 2938214, 3021371, 3492594, 3591441, 4286534, 4407321, 5511258, 6042742, 6429801, 7182882, 8814642, 9064113, 10283749, 12859602, 13221963, 18128226, 19289403, 20567498, 21149597, 26443926, 27192339, 30851247, 38578806, 42299194, 54384678, 61702494, 63448791, 92553741, 126897582, 160132663, 185107482, 190346373, 320265326, 380692746, 480397989, 960795978, 1120928641, 1441193967, 2241857282, 2882387934, 3362785923, 6725571846, 10088357769, 20176715538]

約数ペア:

[(1, 20176715538), (2, 10088357769), (3, 6725571846), (6, 3362785923), (7, 2882387934), (9, 2241857282), (14, 1441193967), (18, 1120928641), (21, 960795978), (42, 480397989), (53, 380692746), (63, 320265326), (106, 190346373), (109, 185107482), (126, 160132663), (159, 126897582), (218, 92553741), (318, 63448791), (327, 61702494), (371, 54384678), (477, 42299194), (523, 38578806), (654, 30851247), (742, 27192339), (763, 26443926), (954, 21149597), (981, 20567498), (1046, 19289403), (1113, 18128226), (1526, 13221963), (1569, 12859602), (1962, 10283749), (2226, 9064113), (2289, 8814642), (2809, 7182882), (3138, 6429801), (3339, 6042742), (3661, 5511258), (4578, 4407321), (4707, 4286534), (5618, 3591441), (5777, 3492594), (6678, 3021371), (6867, 2938214), (7322, 2755629), (8427, 2394294), (9414, 2143267), (10983, 1837086), (11554, 1746297), (13734, 1469107), (16854, 1197147), (17331, 1164198), (19663, 1026126), (21966, 918543), (25281, 798098), (27719, 727902), (32949, 612362), (34662, 582099), (39326, 513063), (40439, 498942), (50562, 399049), (51993, 388066), (55438, 363951), (57007, 353934), (58989, 342042), (65898, 306181), (80878, 249471), (83157, 242634), (103986, 194033), (114014, 176967), (117978, 171021), (121317, 166314)]