21663488

素因数分解:

$2^8\times 7^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1$

素因数の和:198

約数の個数: 108

約数和(自身を含む): 55224792

約数和(自身を除く): 33561304

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 88, 98, 112, 128, 154, 157, 176, 196, 224, 256, 308, 314, 352, 392, 448, 539, 616, 628, 704, 784, 896, 1078, 1099, 1232, 1256, 1408, 1568, 1727, 1792, 2156, 2198, 2464, 2512, 2816, 3136, 3454, 4312, 4396, 4928, 5024, 6272, 6908, 7693, 8624, 8792, 9856, 10048, 12089, 12544, 13816, 15386, 17248, 17584, 19712, 20096, 24178, 27632, 30772, 34496, 35168, 40192, 48356, 55264, 61544, 68992, 70336, 84623, 96712, 110528, 123088, 137984, 140672, 169246, 193424, 221056, 246176, 281344, 338492, 386848, 442112, 492352, 676984, 773696, 984704, 1353968, 1547392, 1969408, 2707936, 3094784, 5415872, 10831744, 21663488]

約数ペア:

[(1, 21663488), (2, 10831744), (4, 5415872), (7, 3094784), (8, 2707936), (11, 1969408), (14, 1547392), (16, 1353968), (22, 984704), (28, 773696), (32, 676984), (44, 492352), (49, 442112), (56, 386848), (64, 338492), (77, 281344), (88, 246176), (98, 221056), (112, 193424), (128, 169246), (154, 140672), (157, 137984), (176, 123088), (196, 110528), (224, 96712), (256, 84623), (308, 70336), (314, 68992), (352, 61544), (392, 55264), (448, 48356), (539, 40192), (616, 35168), (628, 34496), (704, 30772), (784, 27632), (896, 24178), (1078, 20096), (1099, 19712), (1232, 17584), (1256, 17248), (1408, 15386), (1568, 13816), (1727, 12544), (1792, 12089), (2156, 10048), (2198, 9856), (2464, 8792), (2512, 8624), (2816, 7693), (3136, 6908), (3454, 6272), (4312, 5024), (4396, 4928)]