20187886719

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{887}}^1$

素因数の和:998

約数の個数: 144

約数和(自身を含む): 37347319296

約数和(自身を除く): 17159432577

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 53, 77, 91, 121, 143, 159, 169, 231, 273, 363, 371, 429, 507, 583, 689, 847, 887, 1001, 1113, 1183, 1573, 1749, 1859, 2067, 2541, 2661, 3003, 3549, 4081, 4719, 4823, 5577, 6209, 6413, 7579, 8957, 9757, 11011, 11531, 12243, 13013, 14469, 18627, 19239, 20449, 22737, 26871, 29271, 33033, 34593, 39039, 44891, 47011, 53053, 61347, 62699, 68299, 80717, 83369, 98527, 107327, 126841, 134673, 141033, 143143, 149903, 159159, 188097, 204897, 242151, 250107, 295581, 321981, 329077, 380523, 429429, 449709, 517121, 583583, 611143, 689689, 751289, 887887, 987231, 1049321, 1083797, 1395251, 1551363, 1648933, 1750749, 1833429, 2069067, 2253867, 2663661, 3147963, 3251391, 3619847, 4185753, 4278001, 4946799, 5688331, 6722573, 7586579, 7944859, 9766757, 10859541, 11542531, 12834003, 17064993, 18138263, 20167719, 22759737, 23834577, 29300271, 34627593, 39818317, 47058011, 54414789, 55614013, 73948303, 87393449, 119454951, 126967841, 141174033, 166842039, 221844909, 262180347, 380903523, 517638121, 611754143, 961327939, 1552914363, 1835262429, 2883983817, 6729295573, 20187886719]

約数ペア:

[(1, 20187886719), (3, 6729295573), (7, 2883983817), (11, 1835262429), (13, 1552914363), (21, 961327939), (33, 611754143), (39, 517638121), (53, 380903523), (77, 262180347), (91, 221844909), (121, 166842039), (143, 141174033), (159, 126967841), (169, 119454951), (231, 87393449), (273, 73948303), (363, 55614013), (371, 54414789), (429, 47058011), (507, 39818317), (583, 34627593), (689, 29300271), (847, 23834577), (887, 22759737), (1001, 20167719), (1113, 18138263), (1183, 17064993), (1573, 12834003), (1749, 11542531), (1859, 10859541), (2067, 9766757), (2541, 7944859), (2661, 7586579), (3003, 6722573), (3549, 5688331), (4081, 4946799), (4719, 4278001), (4823, 4185753), (5577, 3619847), (6209, 3251391), (6413, 3147963), (7579, 2663661), (8957, 2253867), (9757, 2069067), (11011, 1833429), (11531, 1750749), (12243, 1648933), (13013, 1551363), (14469, 1395251), (18627, 1083797), (19239, 1049321), (20449, 987231), (22737, 887887), (26871, 751289), (29271, 689689), (33033, 611143), (34593, 583583), (39039, 517121), (44891, 449709), (47011, 429429), (53053, 380523), (61347, 329077), (62699, 321981), (68299, 295581), (80717, 250107), (83369, 242151), (98527, 204897), (107327, 188097), (126841, 159159), (134673, 149903), (141033, 143143)]