209985138

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{28663}}^1$

素因数の和:28719

約数の個数: 48

約数和(自身を含む): 509760576

約数和(自身を除く): 299775438

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 37, 66, 74, 99, 111, 198, 222, 333, 407, 666, 814, 1221, 2442, 3663, 7326, 28663, 57326, 85989, 171978, 257967, 315293, 515934, 630586, 945879, 1060531, 1891758, 2121062, 2837637, 3181593, 5675274, 6363186, 9544779, 11665841, 19089558, 23331682, 34997523, 69995046, 104992569, 209985138]

約数ペア:

[(1, 209985138), (2, 104992569), (3, 69995046), (6, 34997523), (9, 23331682), (11, 19089558), (18, 11665841), (22, 9544779), (33, 6363186), (37, 5675274), (66, 3181593), (74, 2837637), (99, 2121062), (111, 1891758), (198, 1060531), (222, 945879), (333, 630586), (407, 515934), (666, 315293), (814, 257967), (1221, 171978), (2442, 85989), (3663, 57326), (7326, 28663)]