21520984576

素因数分解:

$2^9\times 7^1\times {\mathrm{13}}^2\times {\mathrm{35531}}^1$

素因数の和:35582

約数の個数: 120

約数和(自身を含む): 53215281504

約数和(自身を除く): 31694296928

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 169, 182, 208, 224, 256, 338, 364, 416, 448, 512, 676, 728, 832, 896, 1183, 1352, 1456, 1664, 1792, 2366, 2704, 2912, 3328, 3584, 4732, 5408, 5824, 6656, 9464, 10816, 11648, 18928, 21632, 23296, 35531, 37856, 43264, 46592, 71062, 75712, 86528, 142124, 151424, 248717, 284248, 302848, 461903, 497434, 568496, 605696, 923806, 994868, 1136992, 1847612, 1989736, 2273984, 3233321, 3695224, 3979472, 4547968, 6004739, 6466642, 7390448, 7958944, 9095936, 12009478, 12933284, 14780896, 15917888, 18191872, 24018956, 25866568, 29561792, 31835776, 42033173, 48037912, 51733136, 59123584, 63671552, 84066346, 96075824, 103466272, 118247168, 127343104, 168132692, 192151648, 206932544, 236494336, 336265384, 384303296, 413865088, 672530768, 768606592, 827730176, 1345061536, 1537213184, 1655460352, 2690123072, 3074426368, 5380246144, 10760492288, 21520984576]

約数ペア:

[(1, 21520984576), (2, 10760492288), (4, 5380246144), (7, 3074426368), (8, 2690123072), (13, 1655460352), (14, 1537213184), (16, 1345061536), (26, 827730176), (28, 768606592), (32, 672530768), (52, 413865088), (56, 384303296), (64, 336265384), (91, 236494336), (104, 206932544), (112, 192151648), (128, 168132692), (169, 127343104), (182, 118247168), (208, 103466272), (224, 96075824), (256, 84066346), (338, 63671552), (364, 59123584), (416, 51733136), (448, 48037912), (512, 42033173), (676, 31835776), (728, 29561792), (832, 25866568), (896, 24018956), (1183, 18191872), (1352, 15917888), (1456, 14780896), (1664, 12933284), (1792, 12009478), (2366, 9095936), (2704, 7958944), (2912, 7390448), (3328, 6466642), (3584, 6004739), (4732, 4547968), (5408, 3979472), (5824, 3695224), (6656, 3233321), (9464, 2273984), (10816, 1989736), (11648, 1847612), (18928, 1136992), (21632, 994868), (23296, 923806), (35531, 605696), (37856, 568496), (43264, 497434), (46592, 461903), (71062, 302848), (75712, 284248), (86528, 248717), (142124, 151424)]