21171136

素因数分解:

$2^6\times 7^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:226

約数の個数: 84

約数和(自身を含む): 50325528

約数和(自身を除く): 29154392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 64, 86, 98, 112, 157, 172, 196, 224, 301, 314, 344, 392, 448, 602, 628, 688, 784, 1099, 1204, 1256, 1376, 1568, 2107, 2198, 2408, 2512, 2752, 3136, 4214, 4396, 4816, 5024, 6751, 7693, 8428, 8792, 9632, 10048, 13502, 15386, 16856, 17584, 19264, 27004, 30772, 33712, 35168, 47257, 54008, 61544, 67424, 70336, 94514, 108016, 123088, 134848, 189028, 216032, 246176, 330799, 378056, 432064, 492352, 661598, 756112, 1323196, 1512224, 2646392, 3024448, 5292784, 10585568, 21171136]

約数ペア:

[(1, 21171136), (2, 10585568), (4, 5292784), (7, 3024448), (8, 2646392), (14, 1512224), (16, 1323196), (28, 756112), (32, 661598), (43, 492352), (49, 432064), (56, 378056), (64, 330799), (86, 246176), (98, 216032), (112, 189028), (157, 134848), (172, 123088), (196, 108016), (224, 94514), (301, 70336), (314, 67424), (344, 61544), (392, 54008), (448, 47257), (602, 35168), (628, 33712), (688, 30772), (784, 27004), (1099, 19264), (1204, 17584), (1256, 16856), (1376, 15386), (1568, 13502), (2107, 10048), (2198, 9632), (2408, 8792), (2512, 8428), (2752, 7693), (3136, 6751), (4214, 5024), (4396, 4816)]