18743872

素因数分解:

$2^6\times 7^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:208

約数の個数: 84

約数和(自身を含む): 44592240

約数和(自身を除く): 25848368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 64, 86, 98, 112, 139, 172, 196, 224, 278, 301, 344, 392, 448, 556, 602, 688, 784, 973, 1112, 1204, 1376, 1568, 1946, 2107, 2224, 2408, 2752, 3136, 3892, 4214, 4448, 4816, 5977, 6811, 7784, 8428, 8896, 9632, 11954, 13622, 15568, 16856, 19264, 23908, 27244, 31136, 33712, 41839, 47816, 54488, 62272, 67424, 83678, 95632, 108976, 134848, 167356, 191264, 217952, 292873, 334712, 382528, 435904, 585746, 669424, 1171492, 1338848, 2342984, 2677696, 4685968, 9371936, 18743872]

約数ペア:

[(1, 18743872), (2, 9371936), (4, 4685968), (7, 2677696), (8, 2342984), (14, 1338848), (16, 1171492), (28, 669424), (32, 585746), (43, 435904), (49, 382528), (56, 334712), (64, 292873), (86, 217952), (98, 191264), (112, 167356), (139, 134848), (172, 108976), (196, 95632), (224, 83678), (278, 67424), (301, 62272), (344, 54488), (392, 47816), (448, 41839), (556, 33712), (602, 31136), (688, 27244), (784, 23908), (973, 19264), (1112, 16856), (1204, 15568), (1376, 13622), (1568, 11954), (1946, 9632), (2107, 8896), (2224, 8428), (2408, 7784), (2752, 6811), (3136, 5977), (3892, 4816), (4214, 4448)]