21251692

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9857}}^1$

素因数の和:9886

約数の個数: 36

約数和(自身を含む): 47200104

約数和(自身を除く): 25948412

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9857, 19714, 39428, 68999, 108427, 137998, 216854, 275996, 433708, 482993, 758989, 965986, 1517978, 1931972, 3035956, 5312923, 10625846, 21251692]

約数ペア:

[(1, 21251692), (2, 10625846), (4, 5312923), (7, 3035956), (11, 1931972), (14, 1517978), (22, 965986), (28, 758989), (44, 482993), (49, 433708), (77, 275996), (98, 216854), (154, 137998), (196, 108427), (308, 68999), (539, 39428), (1078, 19714), (2156, 9857)]