21787458

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6737}}^1$

素因数の和:6767

約数の個数: 48

約数和(自身を含む): 55305504

約数和(自身を除く): 33518046

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 147, 154, 231, 294, 462, 539, 1078, 1617, 3234, 6737, 13474, 20211, 40422, 47159, 74107, 94318, 141477, 148214, 222321, 282954, 330113, 444642, 518749, 660226, 990339, 1037498, 1556247, 1980678, 3112494, 3631243, 7262486, 10893729, 21787458]

約数ペア:

[(1, 21787458), (2, 10893729), (3, 7262486), (6, 3631243), (7, 3112494), (11, 1980678), (14, 1556247), (21, 1037498), (22, 990339), (33, 660226), (42, 518749), (49, 444642), (66, 330113), (77, 282954), (98, 222321), (147, 148214), (154, 141477), (231, 94318), (294, 74107), (462, 47159), (539, 40422), (1078, 20211), (1617, 13474), (3234, 6737)]