21485814

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{683}}^1$

素因数の和:809

約数の個数: 48

約数和(自身を含む): 50528448

約数和(自身を除く): 29042634

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 107, 147, 214, 294, 321, 642, 683, 749, 1366, 1498, 2049, 2247, 4098, 4494, 4781, 5243, 9562, 10486, 14343, 15729, 28686, 31458, 33467, 66934, 73081, 100401, 146162, 200802, 219243, 438486, 511567, 1023134, 1534701, 3069402, 3580969, 7161938, 10742907, 21485814]

約数ペア:

[(1, 21485814), (2, 10742907), (3, 7161938), (6, 3580969), (7, 3069402), (14, 1534701), (21, 1023134), (42, 511567), (49, 438486), (98, 219243), (107, 200802), (147, 146162), (214, 100401), (294, 73081), (321, 66934), (642, 33467), (683, 31458), (749, 28686), (1366, 15729), (1498, 14343), (2049, 10486), (2247, 9562), (4098, 5243), (4494, 4781)]