21404502784

素因数分解:

$2^8\times 7^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{577}}^1$

素因数の和:890

約数の個数: 144

約数和(自身を含む): 49601241088

約数和(自身を除く): 28196738304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 127, 128, 163, 224, 254, 256, 326, 448, 508, 577, 652, 889, 896, 1016, 1141, 1154, 1304, 1778, 1792, 2032, 2282, 2308, 2608, 3556, 4039, 4064, 4564, 4616, 5216, 7112, 8078, 8128, 9128, 9232, 10432, 14224, 16156, 16256, 18256, 18464, 20701, 20864, 28448, 32312, 32512, 36512, 36928, 41402, 41728, 56896, 64624, 73024, 73279, 73856, 82804, 94051, 113792, 129248, 144907, 146048, 146558, 147712, 165608, 188102, 227584, 258496, 289814, 292096, 293116, 331216, 376204, 512953, 516992, 579628, 586232, 658357, 662432, 752408, 1025906, 1033984, 1159256, 1172464, 1316714, 1324864, 1504816, 2051812, 2318512, 2344928, 2633428, 2649728, 3009632, 4103624, 4637024, 4689856, 5266856, 5299456, 6019264, 8207248, 9274048, 9379712, 10533712, 11944477, 12038528, 16414496, 18548096, 18759424, 21067424, 23888954, 24077056, 32828992, 37096192, 42134848, 47777908, 65657984, 83611339, 84269696, 95555816, 131315968, 167222678, 168539392, 191111632, 334445356, 382223264, 668890712, 764446528, 1337781424, 1528893056, 2675562848, 3057786112, 5351125696, 10702251392, 21404502784]

約数ペア:

[(1, 21404502784), (2, 10702251392), (4, 5351125696), (7, 3057786112), (8, 2675562848), (14, 1528893056), (16, 1337781424), (28, 764446528), (32, 668890712), (56, 382223264), (64, 334445356), (112, 191111632), (127, 168539392), (128, 167222678), (163, 131315968), (224, 95555816), (254, 84269696), (256, 83611339), (326, 65657984), (448, 47777908), (508, 42134848), (577, 37096192), (652, 32828992), (889, 24077056), (896, 23888954), (1016, 21067424), (1141, 18759424), (1154, 18548096), (1304, 16414496), (1778, 12038528), (1792, 11944477), (2032, 10533712), (2282, 9379712), (2308, 9274048), (2608, 8207248), (3556, 6019264), (4039, 5299456), (4064, 5266856), (4564, 4689856), (4616, 4637024), (5216, 4103624), (7112, 3009632), (8078, 2649728), (8128, 2633428), (9128, 2344928), (9232, 2318512), (10432, 2051812), (14224, 1504816), (16156, 1324864), (16256, 1316714), (18256, 1172464), (18464, 1159256), (20701, 1033984), (20864, 1025906), (28448, 752408), (32312, 662432), (32512, 658357), (36512, 586232), (36928, 579628), (41402, 516992), (41728, 512953), (56896, 376204), (64624, 331216), (73024, 293116), (73279, 292096), (73856, 289814), (82804, 258496), (94051, 227584), (113792, 188102), (129248, 165608), (144907, 147712), (146048, 146558)]