21895379792

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{1259}}^1$

素因数の和:1993

約数の個数: 120

約数和(自身を含む): 50328966240

約数和(自身を除く): 28433586448

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 121, 143, 176, 208, 242, 286, 484, 572, 691, 968, 1144, 1259, 1382, 1573, 1936, 2288, 2518, 2764, 3146, 5036, 5528, 6292, 7601, 8983, 10072, 11056, 12584, 13849, 15202, 16367, 17966, 20144, 25168, 27698, 30404, 32734, 35932, 55396, 60808, 65468, 71864, 83611, 98813, 110792, 121616, 130936, 143728, 152339, 167222, 180037, 197626, 221584, 261872, 304678, 334444, 360074, 395252, 609356, 668888, 720148, 790504, 869969, 1086943, 1218712, 1337776, 1440296, 1581008, 1739938, 1980407, 2173886, 2437424, 2880592, 3479876, 3960814, 4347772, 6959752, 7921628, 8695544, 9569659, 11309597, 13919504, 15843256, 17391088, 19139318, 22619194, 31686512, 38278636, 45238388, 76557272, 90476776, 105266249, 124405567, 153114544, 180953552, 210532498, 248811134, 421064996, 497622268, 842129992, 995244536, 1368461237, 1684259984, 1990489072, 2736922474, 5473844948, 10947689896, 21895379792]

約数ペア:

[(1, 21895379792), (2, 10947689896), (4, 5473844948), (8, 2736922474), (11, 1990489072), (13, 1684259984), (16, 1368461237), (22, 995244536), (26, 842129992), (44, 497622268), (52, 421064996), (88, 248811134), (104, 210532498), (121, 180953552), (143, 153114544), (176, 124405567), (208, 105266249), (242, 90476776), (286, 76557272), (484, 45238388), (572, 38278636), (691, 31686512), (968, 22619194), (1144, 19139318), (1259, 17391088), (1382, 15843256), (1573, 13919504), (1936, 11309597), (2288, 9569659), (2518, 8695544), (2764, 7921628), (3146, 6959752), (5036, 4347772), (5528, 3960814), (6292, 3479876), (7601, 2880592), (8983, 2437424), (10072, 2173886), (11056, 1980407), (12584, 1739938), (13849, 1581008), (15202, 1440296), (16367, 1337776), (17966, 1218712), (20144, 1086943), (25168, 869969), (27698, 790504), (30404, 720148), (32734, 668888), (35932, 609356), (55396, 395252), (60808, 360074), (65468, 334444), (71864, 304678), (83611, 261872), (98813, 221584), (110792, 197626), (121616, 180037), (130936, 167222), (143728, 152339)]