21250712

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2357}}^1$

素因数の和:2400

約数の個数: 48

約数和(自身を含む): 48386160

約数和(自身を除く): 27135448

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 161, 184, 196, 322, 392, 644, 1127, 1288, 2254, 2357, 4508, 4714, 9016, 9428, 16499, 18856, 32998, 54211, 65996, 108422, 115493, 131992, 216844, 230986, 379477, 433688, 461972, 758954, 923944, 1517908, 2656339, 3035816, 5312678, 10625356, 21250712]

約数ペア:

[(1, 21250712), (2, 10625356), (4, 5312678), (7, 3035816), (8, 2656339), (14, 1517908), (23, 923944), (28, 758954), (46, 461972), (49, 433688), (56, 379477), (92, 230986), (98, 216844), (161, 131992), (184, 115493), (196, 108422), (322, 65996), (392, 54211), (644, 32998), (1127, 18856), (1288, 16499), (2254, 9428), (2357, 9016), (4508, 4714)]