18281978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 32598720

約数和(自身を除く): 14316742

約数列:

[1, 2, 11, 13, 22, 26, 97, 143, 194, 286, 659, 1067, 1261, 1318, 2134, 2522, 7249, 8567, 13871, 14498, 17134, 27742, 63923, 94237, 127846, 188474, 703153, 830999, 1406306, 1661998, 9140989, 18281978]

約数ペア:

[(1, 18281978), (2, 9140989), (11, 1661998), (13, 1406306), (22, 830999), (26, 703153), (97, 188474), (143, 127846), (194, 94237), (286, 63923), (659, 27742), (1067, 17134), (1261, 14498), (1318, 13871), (2134, 8567), (2522, 7249)]