20804938371

素因数分解:

$3^4\times 7^3\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:356

約数の個数: 160

約数和(自身を含む): 37635840000

約数和(自身を除く): 16830901629

約数列:

[1, 3, 7, 9, 21, 27, 49, 53, 63, 71, 81, 147, 159, 189, 199, 213, 343, 371, 441, 477, 497, 567, 597, 639, 1029, 1113, 1323, 1393, 1431, 1491, 1791, 1917, 2597, 3087, 3339, 3479, 3763, 3969, 4179, 4293, 4473, 5373, 5751, 7791, 9261, 9751, 10017, 10437, 10547, 11289, 12537, 13419, 14129, 16119, 18179, 23373, 24353, 26341, 27783, 29253, 30051, 31311, 31641, 33867, 37611, 40257, 42387, 54537, 68257, 70119, 73059, 73829, 79023, 87759, 93933, 94923, 98903, 101601, 112833, 127161, 163611, 184387, 204771, 210357, 219177, 221487, 237069, 263277, 281799, 284769, 296709, 304803, 381483, 490833, 516803, 553161, 614313, 657531, 664461, 692321, 711207, 748837, 789831, 854307, 890127, 1144449, 1290709, 1472499, 1550409, 1659483, 1842939, 1972593, 1993383, 2076963, 2133621, 2246511, 2670381, 3617621, 3872127, 4651227, 4846247, 4978449, 5241859, 5528817, 5980149, 6230889, 6739533, 8011143, 10852863, 11616381, 13953681, 14538741, 14935347, 15725577, 18692667, 20218599, 32558589, 34849143, 36693013, 41861043, 43616223, 47176731, 56078001, 60655797, 97675767, 104547429, 110079039, 130848669, 141530193, 256851091, 293027301, 330237117, 392546007, 424590579, 770553273, 990711351, 2311659819, 2972134053, 6934979457, 20804938371]

約数ペア:

[(1, 20804938371), (3, 6934979457), (7, 2972134053), (9, 2311659819), (21, 990711351), (27, 770553273), (49, 424590579), (53, 392546007), (63, 330237117), (71, 293027301), (81, 256851091), (147, 141530193), (159, 130848669), (189, 110079039), (199, 104547429), (213, 97675767), (343, 60655797), (371, 56078001), (441, 47176731), (477, 43616223), (497, 41861043), (567, 36693013), (597, 34849143), (639, 32558589), (1029, 20218599), (1113, 18692667), (1323, 15725577), (1393, 14935347), (1431, 14538741), (1491, 13953681), (1791, 11616381), (1917, 10852863), (2597, 8011143), (3087, 6739533), (3339, 6230889), (3479, 5980149), (3763, 5528817), (3969, 5241859), (4179, 4978449), (4293, 4846247), (4473, 4651227), (5373, 3872127), (5751, 3617621), (7791, 2670381), (9261, 2246511), (9751, 2133621), (10017, 2076963), (10437, 1993383), (10547, 1972593), (11289, 1842939), (12537, 1659483), (13419, 1550409), (14129, 1472499), (16119, 1290709), (18179, 1144449), (23373, 890127), (24353, 854307), (26341, 789831), (27783, 748837), (29253, 711207), (30051, 692321), (31311, 664461), (31641, 657531), (33867, 614313), (37611, 553161), (40257, 516803), (42387, 490833), (54537, 381483), (68257, 304803), (70119, 296709), (73059, 284769), (73829, 281799), (79023, 263277), (87759, 237069), (93933, 221487), (94923, 219177), (98903, 210357), (101601, 204771), (112833, 184387), (127161, 163611)]